Fix install location to meet FHS, and remove useless symlink
===================================================================
--- hipFFT-rocm-5.1.3.orig/library/CMakeLists.txt
+++ hipFFT-rocm-5.1.3/library/CMakeLists.txt
@@ -81,7 +81,7 @@ target_include_directories( hipfft
   PUBLIC  $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/library/include>
   $<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include>
   $<BUILD_INTERFACE:${HIP_INCLUDE_DIRS}>
-  $<INSTALL_INTERFACE:include>
+  $<INSTALL_INTERFACE:include/hipfft>
   ${HIP_INCLUDE_DIRS}
   )

@@ -142,13 +142,11 @@ if( ROCM_FOUND )
   rocm_install_targets( TARGETS hipfft
     INCLUDE
     ${CMAKE_SOURCE_DIR}/library/include
-    ${CMAKE_BINARY_DIR}/include
-    PREFIX hipfft )
+    ${CMAKE_BINARY_DIR}/include )
   rocm_export_targets( TARGETS hip::hipfft
-    PREFIX hipfft
+    PREFIX .
     DEPENDS PACKAGE hip
     NAMESPACE hip:: )
-  rocm_install_symlink_subdir( hipfft )

   # Package specific CPACK vars
   if( NOT BUILD_WITH_LIB STREQUAL "CUDA" )