Rename ssl_rsa.c to ssl_privkey.c.

ssl_rsa.c now basically deals with private-key functions, so rename to
reflect that.

Change-Id: Ia87ed4c0f9b34af134844e2eeb270fc45ff3f23f
Reviewed-on: https://boringssl-review.googlesource.com/13583
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>

ssl/CMakeLists.txt

@@ -5,14 +5,14 @@ add_library(
 
   bio_ssl.c
   custom_extensions.c
-  handshake_server.c
-  handshake_client.c
   d1_both.c
   d1_lib.c
   d1_pkt.c
   d1_srtp.c
   dtls_method.c
   dtls_record.c
+  handshake_client.c
+  handshake_server.c
   s3_both.c
   s3_enc.c
   s3_lib.c
@@ -25,8 +25,8 @@ add_library(
   ssl_ecdh.c
   ssl_file.c
   ssl_lib.c
-  ssl_rsa.c
-  ssl_rsa_cc.cc
+  ssl_privkey.c
+  ssl_privkey_cc.cc
   ssl_session.c
   ssl_stat.c
   ssl_x509.c