bus: ti-sysc: Set ENAWAKEUP if available

Some modules have ENAWAKEUP bit that we need to configure when not
relying on platform data callbacks.

Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

drivers/bus/ti-sysc.c

@@ -895,6 +895,11 @@ static int sysc_enable_module(struct device *dev)
 			dev_err(dev, "%s: invalid sidlemode\n", __func__);
 			return -EINVAL;
 		}
+
+		/* Set WAKEUP */
+		if (regbits->enwkup_shift >= 0 &&
+		    ddata->cfg.sysc_val & BIT(regbits->enwkup_shift))
+			reg |= BIT(regbits->enwkup_shift);
 	}
 
 	reg &= ~(SYSC_IDLE_MASK << regbits->sidle_shift);