SWDEV-437189 - Provide option to enable/disable CPACK_SET_DESTDIR

The variable is set as cache, so that user can override.
But the hard coded setting is preventing override. Removed the same

Change-Id: Ica5f9074a6532f465705a8dd1a8f21c6643ef49e

samples/CMakeLists.txt

@@ -24,6 +24,9 @@ project(hip-samples)
 option(ENABLE_ADDRESS_SANITIZER "Option to enable ASAN build" OFF)
 option(BUILD_SHARED_LIBS "Use this option to link with shared hip runtime libraries" ON)
 
+if(NOT WIN32)
+    set(CPACK_SET_DESTDIR ON CACHE BOOL "Installer package will install hip-samples to CMAKE_INSTALL_PREFIX instead of CPACK_PACKAGING_INSTALL_PREFIX")
+endif()
 # Read -DROCM_Path and env{ROCM_PATH}
 if(NOT DEFINED ROCM_PATH)
     if(DEFINED ENV{ROCM_PATH})

samples/packaging/CMakeLists.txt

@@ -32,7 +32,6 @@ include(GNUInstallDirs)
 #############################
 # Packaging steps
 #############################
-set(CPACK_SET_DESTDIR TRUE)
 if(NOT DEFINED CPACK_INSTALL_PREFIX)
   set(CPACK_INSTALL_PREFIX "/opt/rocm/")
 endif()