external/boringssl: Sync to 68f37b7a3f451aa1ca8c93669c024d01f6270ae8.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/3ef7697ed30f28367395a5aafb57a12a19906d96..68f37b7a3f451aa1ca8c93669c024d01f6270ae8

Test: cts-tradefed run cts -m CtsLibcoreOkHttpTestCases -a arm64-v8a
Test: cts-tradefed run cts -m CtsLibcoreTestCases -a arm64-v8a

Change-Id: I296d05afab7470335cdda2442414a858df591f6c
diff --git a/src/crypto/x509/x_crl.c b/src/crypto/x509/x_crl.c
index 89cd5d1..6450e84 100644
--- a/src/crypto/x509/x_crl.c
+++ b/src/crypto/x509/x_crl.c
@@ -283,7 +283,7 @@
                 if ((nid == NID_issuing_distribution_point)
                     || (nid == NID_authority_key_identifier)
                     || (nid == NID_delta_crl))
-                    break;;
+                    continue;
                 crl->flags |= EXFLAG_CRITICAL;
                 break;
             }