Add RSA_PSS_PARAMS to bssl::UniquePtr.

Change-Id: I471eb1c13aafb71ba5dc33f623811d5447cc85c6
Reviewed-on: https://boringssl-review.googlesource.com/26684
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>

include/openssl/x509.h

@@ -1110,6 +1110,7 @@ extern "C++" {
 namespace bssl {
 
 BORINGSSL_MAKE_DELETER(NETSCAPE_SPKI, NETSCAPE_SPKI_free)
+BORINGSSL_MAKE_DELETER(RSA_PSS_PARAMS, RSA_PSS_PARAMS_free)
 BORINGSSL_MAKE_DELETER(X509, X509_free)
 BORINGSSL_MAKE_DELETER(X509_ALGOR, X509_ALGOR_free)
 BORINGSSL_MAKE_DELETER(X509_CRL, X509_CRL_free)