SWDEV-330775 - Update search path for LLVM

ROCm's LLVM will be moved into /opt/rocm-<ver>/lib/, teach hipcc and
hipconfig about the new location.

Change-Id: Ie7f17146771aff94c684deb22148226cbb3a2895

hipamd/src/CMakeLists.txt

@@ -175,7 +175,7 @@ endif()
 if(__HIP_ENABLE_PCH)
   find_package(LLVM REQUIRED CONFIG
     PATHS
-      ${ROCM_PATH}/llvm)
+      ${ROCM_PATH}/llvm ${ROCM_PATH}/lib)
   # find_package(LLVM) returns the lib/cmake/llvm location. We require the root.
   if(NOT DEFINED HIP_LLVM_ROOT)
     set(HIP_LLVM_ROOT "${LLVM_DIR}/../../..")

hipamd/src/hiprtc/CMakeLists.txt

@@ -122,8 +122,8 @@ add_to_config(_versionInfo HIP_VERSION_GITHASH)
 # Enable preprocessed hiprtc-builtins library
 include(HIPRTC RESULT_VARIABLE HIPRTC_CMAKE)
 # Requires clang and llvm-mc to create this library.
-find_package(LLVM REQUIRED CONFIG PATHS ${ROCM_PATH}/llvm)
-find_package(Clang REQUIRED CONFIG PATHS ${ROCM_PATH}/llvm)
+find_package(LLVM REQUIRED CONFIG PATHS ${ROCM_PATH}/llvm ${ROCM_PATH}/lib)
+find_package(Clang REQUIRED CONFIG PATHS ${ROCM_PATH}/llvm ${ROCM_PATH}/lib)
 set(HIPRTC_GEN_DIR "${CMAKE_CURRENT_BINARY_DIR}/hip_rtc_gen")
 set(HIPRTC_GEN_HEADER "${HIPRTC_GEN_DIR}/hipRTC_header.h")
 set(HIPRTC_GEN_MCIN "${HIPRTC_GEN_DIR}/hipRTC_header.mcin")