ARM: dts: omap4-droid4: Configure wlcore wakeirq

With wlcore supporting optional wakeirqs, we can configure it
for droid 4. This makes ssh connection usable with the SoC
entering deeper idle states.

Let's configure a wakeirq both for the wlcore GPIO and the SDIO
dat1 pin in case wlcore starts supporting SDIO dat1 interrupt at
some point.

And let's also add the missing keep-power-in-suspend while at it.
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap4-droid4-xt894.dts

@@ -359,20 +359,24 @@
 
 &mmc3 {
 	vmmc-supply = <&wl12xx_vmmc>;
+	/* uart2_tx.sdmmc3_dat1 pad as wakeirq */
 	interrupts-extended = <&wakeupgen GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH
 			       &omap4_pmx_core 0xde>;
-
+	interrupt-names = "irq", "wakeup";
 	non-removable;
 	bus-width = <4>;
 	cap-power-off-card;
+	keep-power-in-suspend;
 
 	#address-cells = <1>;
 	#size-cells = <0>;
 	wlcore: wlcore@2 {
 		compatible = "ti,wl1285", "ti,wl1283";
 		reg = <2>;
-		interrupt-parent = <&gpio4>;
-		interrupts = <4 IRQ_TYPE_EDGE_RISING>; /* gpio100 */
+		/* gpio_100 with gpmc_wait2 pad as wakeirq */
+		interrupts-extended = <&gpio4 4 IRQ_TYPE_EDGE_RISING>,
+				      <&omap4_pmx_core 0x4e>;
+		interrupt-names = "irq", "wakeup";
 		ref-clock-frequency = <26000000>;
 		tcxo-clock-frequency = <26000000>;
 	};