Style conformance fixes to ply-frame-buffer.c

BUG=None
TEST=Manual test on VT2

Change-Id: Ie0a3d2650f89524ac78cd190f9688f11cf4545a4
Reviewed-on: http://gerrit.chromium.org/gerrit/1925
Reviewed-by: Daniel Erat <derat@chromium.org>
Tested-by: Richard Barnette <jrbarnette@chromium.org>
1 file changed