Fix generate_build_files.py

Change-Id: Id8f6603e30d5a4289667f1089526bbb2a85543ac
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/70607
Reviewed-by: Adam Langley <agl@google.com>
Auto-Submit: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>

util/generate_build_files.py

diff --git a/util/generate_build_files.py b/util/generate_build_files.py
index 519d67e..50716d5 100644
--- a/util/generate_build_files.py
+++ b/util/generate_build_files.py
@@ -644,8 +644,8 @@
       'pki_internal_headers': PrefixWithSrc(sources['pki']['internal_hdrs']),
       'pki_test': PrefixWithSrc(sources['pki_test']['srcs']),
       'pki_test_data': PrefixWithSrc(sources['pki_test']['data']),
-      'rust_bssl_crypto': PrefixWithSrc(sources['bssl_crypto_rust']['srcs']),
-      'rust_bssl_sys': PrefixWithSrc(sources['bssl_sys_rust']['srcs']),
+      'rust_bssl_crypto': PrefixWithSrc(sources['rust_bssl_crypto']['srcs']),
+      'rust_bssl_sys': PrefixWithSrc(sources['rust_bssl_sys']['srcs']),
       'ssl': PrefixWithSrc(sources['ssl']['srcs']),
       'ssl_headers': PrefixWithSrc(sources['ssl']['hdrs']),
       'ssl_internal_headers': PrefixWithSrc(sources['ssl']['internal_hdrs']),