[hsa] Rename hsa.[ch] to hsa-common.[ch]

[hsa] Rename hsa.[ch] to hsa-common.[ch]

2017-01-20  Martin Jambor  <mjambor@suse.cz>

        * hsa.h: Renaed to hsa-common.h.  Adjusted a comment.
        * hsa.c: Renaed to hsa-common.c.  Change include of gt-hsa.h to
        gt-hsa-common.h.
        * Makefile.in (OBJS): Rename hsa.o to hsa-common.o.
        (GTFILES): Rename hsa.c to hsa-common.c.
        * hsa-brig.c: Change include of hsa.h to hsa-common.h.
        * hsa-dump.c: Likewise.
        * hsa-gen.c: Likewise.
        * hsa-regalloc.c: Likewise.
        * ipa-hsa.c: Likewise.
        * omp-expand.c: Likewise.
        * omp-low.c: Likewise.
        * toplev.c: Likewise.

From-SVN: r244711