Merge pull request #27252 from asmorkalov:as/extract_hal

Extract all HALs from 3rdparty to dedicated folder. #27252

### Pull Request Readiness Checklist

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [ ] The PR is proposed to the proper branch
- [ ] There is a reference to the original bug report and related work
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake

CMakeLists.txt

@@ -1005,7 +1005,7 @@ endif()
 foreach(hal ${OpenCV_HAL})
   if(hal STREQUAL "carotene")
     if(";${CPU_BASELINE_FINAL};" MATCHES ";NEON;")
-      add_subdirectory(3rdparty/carotene/hal)
+      add_subdirectory(hal/carotene/hal)
       ocv_hal_register(CAROTENE_HAL_LIBRARIES CAROTENE_HAL_HEADERS CAROTENE_HAL_INCLUDE_DIRS)
       list(APPEND OpenCV_USED_HAL "carotene (ver ${CAROTENE_HAL_VERSION})")
     else()
@@ -1013,19 +1013,19 @@ foreach(hal ${OpenCV_HAL})
     endif()
   elseif(hal STREQUAL "fastcv")
     if((ARM OR AARCH64) AND (ANDROID OR (UNIX AND NOT APPLE AND NOT IOS AND NOT XROS)))
-      add_subdirectory(3rdparty/fastcv)
+      add_subdirectory(hal/fastcv)
       ocv_hal_register(FASTCV_HAL_LIBRARIES FASTCV_HAL_HEADERS FASTCV_HAL_INCLUDE_DIRS)
       list(APPEND OpenCV_USED_HAL "fastcv (ver ${FASTCV_HAL_VERSION})")
     else()
       message(STATUS "FastCV: fastcv is not available, disabling fastcv...")
     endif()
   elseif(hal STREQUAL "kleidicv")
-    add_subdirectory(3rdparty/kleidicv)
+    add_subdirectory(hal/kleidicv)
     ocv_hal_register(KLEIDICV_HAL_LIBRARIES KLEIDICV_HAL_HEADERS KLEIDICV_HAL_INCLUDE_DIRS)
     list(APPEND OpenCV_USED_HAL "KleidiCV (ver ${KLEIDICV_HAL_VERSION})")
   elseif(hal STREQUAL "ndsrvp")
     if(CMAKE_C_FLAGS MATCHES "-mext-dsp" AND CMAKE_CXX_FLAGS MATCHES "-mext-dsp" AND NOT ";${CPU_BASELINE_FINAL};" MATCHES ";RVV;")
-      add_subdirectory(3rdparty/ndsrvp)
+      add_subdirectory(hal/ndsrvp)
       ocv_hal_register(NDSRVP_HAL_LIBRARIES NDSRVP_HAL_HEADERS NDSRVP_HAL_INCLUDE_DIRS)
       list(APPEND OpenCV_USED_HAL "ndsrvp (ver ${NDSRVP_HAL_VERSION})")
     else()
@@ -1033,18 +1033,18 @@ foreach(hal ${OpenCV_HAL})
     endif()
   elseif(hal STREQUAL "halrvv")
     if(";${CPU_BASELINE_FINAL};" MATCHES ";RVV;")
-      add_subdirectory(3rdparty/hal_rvv/)
+      add_subdirectory(hal/riscv-rvv)
       ocv_hal_register(RVV_HAL_LIBRARIES RVV_HAL_HEADERS RVV_HAL_INCLUDE_DIRS)
       list(APPEND OpenCV_USED_HAL "HAL RVV (ver ${RVV_HAL_VERSION})")
     else()
       message(STATUS "HAL RVV: RVV is not available, disabling halrvv...")
     endif()
   elseif(hal STREQUAL "ipp")
-    add_subdirectory(3rdparty/ipphal)
+    add_subdirectory(hal/ipp)
     ocv_hal_register(IPP_HAL_LIBRARIES IPP_HAL_HEADERS IPP_HAL_INCLUDE_DIRS)
     list(APPEND OpenCV_USED_HAL "ipp (ver ${IPP_HAL_VERSION})")
   elseif(hal STREQUAL "openvx")
-    add_subdirectory(3rdparty/openvx)
+    add_subdirectory(hal/openvx)
     ocv_hal_register(OPENVX_HAL_LIBRARIES OPENVX_HAL_HEADERS OPENVX_HAL_INCLUDE_DIRS)
     list(APPEND OpenCV_USED_HAL "openvx (ver ${OPENVX_HAL_VERSION})")
   else()

cmake/OpenCVFindLibsPerf.cmake

@@ -169,7 +169,7 @@ if(WITH_KLEIDICV)
     set(HAVE_KLEIDICV ON)
   endif()
   if(NOT HAVE_KLEIDICV)
-    include("${OpenCV_SOURCE_DIR}/3rdparty/kleidicv/kleidicv.cmake")
+    include("${OpenCV_SOURCE_DIR}/hal/kleidicv/kleidicv.cmake")
     download_kleidicv(KLEIDICV_SOURCE_PATH)
     if(KLEIDICV_SOURCE_PATH)
       set(HAVE_KLEIDICV ON)

hal/fastcv/src/fastcv_hal_core.cpp

@@ -704,7 +704,6 @@ int fastcv_hal_gemm32f(
             fcvMatrixMultiplyf32_v2(src2p, m, k, src2_step, src1p, n, src1_step,
                                          dst_temp2.ptr<float>(), dst_temp2.step[0]);
             fcvTransposef32_v2(dst_temp2.ptr<float>(), n, k, dst_temp2.step[0], dstp, dst_stride);
-            
         }
         else
         {