Support running tests on non-NEON devices.

Change-Id: I7d95d53d4d99cb5b58fc05ee8240577575306b94
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/52406
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>

crypto/fipsmodule/aes/aes_test.cc

@@ -559,6 +559,10 @@ static int aes_ref_set_decrypt_key(const uint8_t *key, int bits, AES_KEY *out) {
 
 
 TEST(AESTest, VPAESToBSAESConvert) {
+  if (!vpaes_capable()) {
+    GTEST_SKIP();
+  }
+
   const int kNumIterations = 1000;
   for (int i = 0; i < kNumIterations; i++) {
     uint8_t key[256 / 8];