Add link to 2022 FIPS certificate.

Change-Id: Ief7eeb8b9dd1273b4cd7c72368fb574f4ea511a9
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/69847
Auto-Submit: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
diff --git a/crypto/fipsmodule/FIPS.md b/crypto/fipsmodule/FIPS.md
index 794afee..9908d04 100644
--- a/crypto/fipsmodule/FIPS.md
+++ b/crypto/fipsmodule/FIPS.md
@@ -14,6 +14,7 @@
 1. 2019-10-20: certificate [#3753](https://csrc.nist.gov/Projects/Cryptographic-Module-Validation-Program/Certificate/3753), [security policy](./policydocs/BoringCrypto-Android-Security-Policy-20191020.docx) (in docx format).
 1. 2021-01-28: certificate [#4156](https://csrc.nist.gov/Projects/Cryptographic-Module-Validation-Program/Certificate/4156), [security policy](./policydocs/BoringCrypto-Android-Security-Policy-20210319.docx) (in docx format).
 1. 2021-04-29: certificate [#4407](https://csrc.nist.gov/projects/cryptographic-module-validation-program/certificate/4407).
+1. 2022-06-13: certificate [#4735](https://csrc.nist.gov/projects/cryptographic-module-validation-program/certificate/4735).
 
 ## Running ACVP tests