[layer 1] Reset option for scheduled frames.

This is usefull to drop a scheduled RACH request after an IMM.ASS is
received.

include/l1a_l23_interface.h

@@ -195,6 +195,7 @@ struct l1ctl_pm_conf {
 enum l1ctl_reset_type {
 	L1CTL_RES_T_BOOT,	/* only _IND */
 	L1CTL_RES_T_FULL,
+	L1CTL_RES_T_SCHED,
 };
 
 /* argument to L1CTL_RESET_REQ and L1CTL_RESET_IND */

src/target/firmware/layer1/l23_api.c

@@ -292,6 +292,11 @@ static void l1ctl_rx_reset_req(struct msgb *msg)
 		l1s_reset_hw();
 		l1ctl_tx_reset(L1CTL_RESET_CONF, reset_req->type);
 		break;
+	case L1CTL_RES_T_SCHED:
+		printf("L1CTL_RESET_REQ: SCHED!\n");
+		l1ctl_tx_reset(L1CTL_RESET_CONF, reset_req->type);
+		sched_gsmtime_reset();
+		break;
 	default:
 		printf("unknown L1CTL_RESET_REQ type\n");
 		break;