hip_base package: bundle cmake folder in package

Change-Id: I7f30469242a0357c68b9a27b7b18bbe1f1f15fc1

hipamd/packaging/hip_base.txt

@@ -4,6 +4,7 @@ project(hip_base)
 install(DIRECTORY @hip_SOURCE_DIR@/bin DESTINATION . USE_SOURCE_PERMISSIONS)
 install(DIRECTORY @hip_SOURCE_DIR@/include DESTINATION . PATTERN "hip" EXCLUDE)
 install(FILES @PROJECT_BINARY_DIR@/.version DESTINATION bin)
+install(DIRECTORY @hip_SOURCE_DIR@/cmake DESTINATION .)
 
 #############################
 # Packaging steps