cmake: Install libraries to DATADIR from GNUInstallDirs

This moves default installation location to /usr/share to match libclc.pc.
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewer: Tom Stellard

git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@350565 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed