ramips: Fix Hongdian H7920 v40 pinctrl default state

According to the MT7628 hardware datasheet:
- GPIO/4 was originally used for I2C, but is now used as the Modem Power.
- GPIO/5 was originally used for I2C, but is now used as the SIM card select. (n/a for this device)
- GPIO/6 was originally used for SPI CS1, but is now used as the Serial mode switch.
- GPIO/36 was originally used for PERST, but is now used as the GPS OE. (n/a for this device)
- GPIO/38 was originally used for WDT, but is now used as the Modem2 Power. (n/a for this device)
- GPIO/44 was used for WLED_AN, but is now controlled by `gpio-leds`.

Corrected pinctrl to ensure it works properly in the future.

Signed-off-by: Coia Prant <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/20256
Signed-off-by: Hauke Mehrtens <[email protected]>

target/linux/ramips/dts/mt7628an_hongdian_h7920-v40.dts

@@ -140,7 +140,7 @@
 
 &state_default {
 	gpio {
-		groups = "i2s", "gpio", "refclk";
+		groups = "i2s", "i2c", "spi cs1", "gpio", "perst", "refclk", "wdt", "wled_an";
 		function = "gpio";
 	};
 };
@@ -166,6 +166,3 @@
 	status = "okay";
 };
 
-&pcie {
-	status = "okay";
-};