Include verify_unittest files in PKI_TEST_DATA

Change-Id: I82cddddba8752e1e6c95cfc64dd0b2cbd2870944
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/66267
Reviewed-by: Bob Beck <bbe@google.com>
Commit-Queue: Bob Beck <bbe@google.com>
Auto-Submit: Adam Langley <agl@google.com>
diff --git a/sources.cmake b/sources.cmake
index febdb31..0ea805b 100644
--- a/sources.cmake
+++ b/sources.cmake
@@ -2276,4 +2276,6 @@
   pki/testdata/verify_signed_data_unittest/rsa-pss-sha256.pem
   pki/testdata/verify_signed_data_unittest/rsa-using-ec-key.pem
   pki/testdata/verify_signed_data_unittest/rsa2048-pkcs1-sha512.pem
+  pki/testdata/verify_unittest/google-leaf.der
+  pki/testdata/verify_unittest/self-issued.pem
 )