Improve CMake and relocate tests

- Respect CMAKE_INSTALL_PREFIX and ignore RDC_CLIENT_INSTALL_PREFIX
- Move example and rdctst from rocm/bin to rocm/share/rdc
- Add README for examples

Signed-off-by: Galantsev, Dmitrii <dmitrii.galantsev@amd.com>
Change-Id: I0b1d996d206327fd1b51ac6e82d548829bdb1570

cmake_modules/rdc-backward-compat.cmake

@@ -102,11 +102,11 @@ endfunction()
 
 # Use template header file and generate wrapper header files
 generate_wrapper_header()
-install(DIRECTORY ${RDC_WRAPPER_INC_DIR} DESTINATION DESTINATION ${RDC_INSTALL_PREFIX}/${RDC}/include COMPONENT ${CLIENT_COMPONENT})
+install(DIRECTORY ${RDC_WRAPPER_INC_DIR} DESTINATION DESTINATION ${RDC}/include COMPONENT ${CLIENT_COMPONENT})
 
 # Create symlink to library files
 create_library_symlink()
-install(DIRECTORY ${RDC_WRAPPER_LIB_DIR} DESTINATION ${RDC_INSTALL_PREFIX}/${RDC} COMPONENT ${CLIENT_COMPONENT})
+install(DIRECTORY ${RDC_WRAPPER_LIB_DIR} DESTINATION ${RDC} COMPONENT ${CLIENT_COMPONENT})
 # Create symlink to library binaries
 create_binary_symlink()
-install(DIRECTORY ${RDC_WRAPPER_BIN_DIR} DESTINATION ${RDC_INSTALL_PREFIX}/${RDC} COMPONENT ${CLIENT_COMPONENT})
+install(DIRECTORY ${RDC_WRAPPER_BIN_DIR} DESTINATION ${RDC} COMPONENT ${CLIENT_COMPONENT})