Align the SSL stack on #include style.

ssl.h should be first. Also two lines after includes and the rest of the
file.

Change-Id: Icb7586e00a3e64170082c96cf3f8bfbb2b7e1611
Reviewed-on: https://boringssl-review.googlesource.com/5892
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/ssl/s3_lib.c b/ssl/s3_lib.c
index 7125215..617ea6e 100644
--- a/ssl/s3_lib.c
+++ b/ssl/s3_lib.c
@@ -146,6 +146,8 @@
  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
  * OTHERWISE. */
 
+#include <openssl/ssl.h>
+
 #include <assert.h>
 #include <stdio.h>
 #include <string.h>