Update CREDITS.TXT with Clang OpenMP implementation + test suite contributors from AMD, Argonne National Lab., IBM, Intel, Texas Instruments, University of Houston and many others. 
Update CREDITS.TXT with Clang OpenMP implementation + test suite contributors from AMD, Argonne National Lab., IBM, Intel, Texas Instruments, University of Houston and many others. 

git-svn-id: 263342a87c3ff23ea578f8c5fbbb34c4b5dc855b@245845 91177308-0d34-0410-b5e6-96231b3b80d8

dslab-epfl/asap,dslab-epfl/asap,dslab-epfl/asap,dslab-epfl/asap,dslab-epfl/asap,dslab-epfl/asap,dslab-epfl/asap