ARM: meson: fix pinctrl for eMMC on Libre Computer aml-a311d-cc

[jimmyhon]

Attempt to fix u-boot not reading the eMMC

https://hub.libre.computer/t/emmc-not-recognized-by-u-boot-on-alta/4999/

Make the pinctrl match the other vim3 (also a311d) and the solitude

libretech-u-boot/arch/arm/dts/meson-khadas-vim3-u-boot.dtsi

Line 19 in e4c8b32

pinctrl-0 = <&emmc_ctrl_pins>, <&emmc_data_4b_pins>, <&emmc_ds_pins>;

libretech-u-boot/arch/arm/dts/meson-sm1-s905d3-libretech-cc-u-boot.dtsi

Line 9 in e4c8b32

pinctrl-0 = <&emmc_ctrl_pins>, <&emmc_data_4b_pins>, <&emmc_ds_pins>;

[jimmyhon]

Note: when the eMMC works in Linux, the device tree has 4 sets defined in the pinctrl

libretech-u-boot/dts/upstream/src/arm64/amlogic/meson-libretech-cottonwood.dtsi

Lines 501 to 523 in e4c8b32

	/*
	* EMMC_D4, EMMC_D5, EMMC_D6 and EMMC_D7 pins are shared between SPI NOR CS
	* and eMMC Data 4 to 7 pins.
	* Replace emmc_data_8b_pins to emmc_data_4b_pins from sd_emmc_c pinctrl-0,
	* and change bus-width to 4 then spifc can be enabled.
	*/
	&sd_emmc_c {
	status = "okay";
	pinctrl-0 = <&emmc_ctrl_pins>, <&emmc_data_8b_pins>, <&emmc_ds_pins>,
	<&spi_cs_disable_pins>;
	pinctrl-1 = <&emmc_clk_gate_pins>;
	pinctrl-names = "default", "clk-gate";
	bus-width = <8>;
	cap-mmc-highspeed;
	mmc-hs200-1_8v;
	max-frequency = <200000000>;
	disable-wp;
	mmc-pwrseq = <&emmc_pwrseq>;
	vmmc-supply = <&vcc_3v3>;
	vqmmc-supply = <&flash_1v8>;
	};