external/boringssl: Sync to 9bbdf5832de8a2d395303c669b594fc61c791f4d.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/c642aca28feb7e18f244658559f4042286aed0c8..9bbdf5832de8a2d395303c669b594fc61c791f4d

Test: BoringSSL CTS Presubmits.
Change-Id: Ieb6fcfee99c4cc496b2f6e1d3e6597784bd80189
diff --git a/src/util/all_tests.go b/src/util/all_tests.go
index d3f9203..ef23080 100644
--- a/src/util/all_tests.go
+++ b/src/util/all_tests.go
@@ -96,6 +96,7 @@
 	"slt", // Saltwell
 	"slm", // Silvermont
 	"glm", // Goldmont
+	"knm", // Knights Mill
 }
 
 func newTestOutput() *testOutput {