arm: dts: mt7623: fix card detection issue on bananapi-r2

Fix that bananapi-r2 booting from SD-card would fail since incorrect
polarity is applied to the previous setup with GPIO_ACTIVE_HIGH.

Cc: stable@vger.kernel.org
Fixes: 0eed8d09 ("arm: dts: mt7623: Add SD-card and EMMC to bananapi-r2")
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Tested-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts

@@ -204,7 +204,7 @@ &mmc1 {
 	bus-width = <4>;
 	max-frequency = <50000000>;
 	cap-sd-highspeed;
-	cd-gpios = <&pio 261 0>;
+	cd-gpios = <&pio 261 GPIO_ACTIVE_LOW>;
 	vmmc-supply = <&mt6323_vmch_reg>;
 	vqmmc-supply = <&mt6323_vio18_reg>;
 };