lib,rlc_am_nr: stop status prohibit timer when a polling bit is received.

lib/src/rlc/rlc_am_nr.cc

@@ -502,6 +502,7 @@ void rlc_am_nr_rx::handle_data_pdu(uint8_t* payload, uint32_t nof_bytes)
   if (header.p) {
     logger->info("%s Status packet requested through polling bit", parent->rb_name);
     do_status = true;
+    status_prohibit_timer.stop();
   }
 
   debug_state();