Install license file

See 

Signed-off-by: Jeremy Newton <Jeremy.Newton@amd.com>
Change-Id: I80e9664b5ade520d9bf9b9a20ac36d67cfe85107

runtime/hsa-runtime/CMakeLists.txt

@@ -301,7 +301,7 @@ install ( TARGETS ${CORE_RUNTIME_TARGET} EXPORT ${CORE_RUNTIME_NAME}Targets
   LIBRARY DESTINATION lib COMPONENT binary )
 
 # Install license
-#install ( FILES ${CMAKE_CURRENT_SOURCE_DIR}/LICENSE.md DESTINATION ${CMAKE_INSTALL_DOCDIR} COMPONENT binary )
+install ( FILES ${CMAKE_CURRENT_SOURCE_DIR}/LICENSE.md DESTINATION ${CMAKE_INSTALL_DOCDIR} COMPONENT binary )
 
 # Install public headers
 # TODO: Fix me for flat directory layout.  Should be ${CMAKE_INSTALL_INCLUDEDIR}