Add GN target for skpinfo

BUG=skia:6178

Change-Id: If6f96063fcb4e541da560ff00b925fd8098ce6b9
Reviewed-on: https://skia-review.googlesource.com/7791
Commit-Queue: Ravi Mistry <rmistry@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>
1 file changed