aes/asm/bsaes-armv7.pl: fix compilation with Xcode 6.3.

(Imported from upstream's c4cd8316068f1c3b5a0050e60b3ea21a20db276e.)

Change-Id: Ib2eab081fd3e20ac8bf2ac5c093a804763d877ce
Reviewed-on: https://boringssl-review.googlesource.com/4891
Reviewed-by: Adam Langley <agl@google.com>
1 file changed