Install LibElf config module.

libelf does not natively support cmake packages and is not located
by cmake's default system library modules.

Change-Id: I4e7cda32615febf9f45ccc15f4e2a3f3505804bb

runtime/hsa-runtime/CMakeLists.txt

@@ -309,6 +309,11 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${CORE_RUNTIME_TARGET}-config.cmake ${
   DESTINATION lib/cmake/${CORE_RUNTIME_TARGET}
   COMPONENT dev)
 
+# Install the libelf find module
+install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules/FindLibElf.cmake ${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules/COPYING-CMAKE-SCRIPTS
+  DESTINATION lib/cmake/${CORE_RUNTIME_TARGET}
+  COMPONENT dev)
+
 # Optionally record the package's find module in the user's package cache.
 if ( NOT DEFINED EXPORT_TO_USER_PACKAGE_REGISTRY )
   set ( EXPORT_TO_USER_PACKAGE_REGISTRY "off" )

runtime/hsa-runtime/hsa-runtime64-config.cmake.in

@@ -45,5 +45,6 @@
 include( CMakeFindDependencyMacro )
 
 find_dependency(hsakmt 1.0)
+find_dependency(elf::elf)
 
 include( "${CMAKE_CURRENT_LIST_DIR}/@CORE_RUNTIME_TARGET@Targets.cmake" )