android_gdbserver: Don't fail when trying to locate nonexistent files

Without '-x', exit codes of remote commands are forwarded to the host,
causing the shell script to terminate early.

Change-Id: I4cd8357277e22cc6d616d31bc83ba228eb8c2940
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/241363
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed