Scale bmp files correctly for x86 when generating bmpblocks.

BUG=None
TEST=Run 'make' in newbitmaps directory but remove the "clean"
step in the Makefile. Use the bmp_viewer utility to verify
all graphic elements are scaled.

Change-Id: Ifd62c2ba3a6c354c4de7d9fd052d76de36842fb6
Reviewed-on: https://gerrit.chromium.org/gerrit/30126
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Commit-Ready: Dave Parker <dparker@chromium.org>
Tested-by: Dave Parker <dparker@chromium.org>
1 file changed