drbg: add handling for cases where TSAN isn't available

Most of the DRGB code is run under lock from the EVP layer.  This is relied
on to make the majority of TSAN operations safe.  However, it is still necessary
to enable locking for all DRBGs created.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from #17479)

providers/implementations/rands/drbg.c

@@ -837,6 +837,10 @@ PROV_DRBG *ossl_rand_drbg_new
             goto err;
         }
     }
+#ifdef TSAN_REQUIRES_LOCKING
+    if (!ossl_drbg_enable_locking(drbg))
+        goto err;
+#endif
     return drbg;
 
  err: