Change statem prefix to ossl_statem

Change various state machine functions to use the prefix ossl_statem
instead.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

ssl/ssl_stat.c

@@ -89,7 +89,7 @@ const char *SSL_state_string_long(const SSL *s)
 {
     const char *str;
 
-    if (statem_in_error(s)) {
+    if (ossl_statem_in_error(s)) {
         return "error";
     }
 
@@ -204,7 +204,7 @@ const char *SSL_state_string(const SSL *s)
 {
     const char *str;
 
-    if (statem_in_error(s)) {
+    if (ossl_statem_in_error(s)) {
         return "SSLERR";
     }