external/boringssl: Sync to a93bc1124c00b1ac0a68ea5cb14b158d6c8366e1.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/3120950b1e27635ee9b9d167052ce11ce9c96fd4..a93bc1124c00b1ac0a68ea5cb14b158d6c8366e1

Test: BoringSSL CTS Presubmits.
Change-Id: Ifa05098e38da1872f2fe043a10780e91cbd3315c
diff --git a/src/crypto/test/file_test.h b/src/crypto/test/file_test.h
index 8c476c4..fd1dcd7 100644
--- a/src/crypto/test/file_test.h
+++ b/src/crypto/test/file_test.h
@@ -184,6 +184,9 @@
   // instructions.
   void InjectInstruction(const std::string &key, const std::string &value);
 
+  // SkipCurrent passes the current test case. Unused attributes are ignored.
+  void SkipCurrent();
+
  private:
   void ClearTest();
   void ClearInstructions();