Correct strip command.

Strip should only apply to the output target library.  Symlinks
with .so endings which will be relocated during install will cause
strip to fail, aborting the build.

Change-Id: Ieb598c2cec5277d9d14c8afa88b91ca2c7f4412d

runtime/hsa-runtime-tools/CMakeLists.txt

@@ -232,7 +232,7 @@ target_link_libraries (
 
 ## If the build is Release, strip the target library
 if ( "${CMAKE_BUILD_TYPE}" STREQUAL Release )
-    add_custom_command ( TARGET ${TOOLS_TARGET} POST_BUILD COMMAND ${CMAKE_STRIP} *.so )
+    add_custom_command ( TARGET ${TOOLS_TARGET} POST_BUILD COMMAND ${CMAKE_STRIP} $<TARGET_FILE_NAME:${TOOLS_TARGET}> )
 endif ()
 
 ## Create symlinks for legacy packaging and install