trxcon: trx_if_cmd_poweron(): send CMD POWERON unconditionally

This works-around a race condition happening when the upper layers
are sending L1CTL RESET.req immediately followed by L1CTL FBSB.req.
The problem is that the TRXC logic is considering the transceiver
powered on until a response to CMD POWEROFF is received.

Change-Id: I967ce047eb198f1eaf8446bb4c1f87a98d3de264
Related: OS#5500

src/host/trxcon/src/trx_if.c

@@ -261,8 +261,10 @@ static int trx_if_cmd_poweroff(struct trx_instance *trx)
 
 static int trx_if_cmd_poweron(struct trx_instance *trx)
 {
+#if 0
 	if (trx->powered_up)
 		return -EAGAIN;
+#endif
 	return trx_ctrl_cmd(trx, 1, "POWERON", "");
 }