arm64: dts: qcom: sdm636-xiaomi-tulip: enable spi_7 interface

[M0Rf30]

This enables spi_7 interface on xiaomi-tulip

dmesg:

[ 2.797349] spi_qup c1b7000.spi: IN:block:16, fifo:64, OUT:block:16, fifo:64

downstream references:
https://github.com/Genom-Project/android_kernel_xiaomi_tulip/blob/2e83ae9ce4cdfafe5908c802ae1d159ca5e26753/arch/arm/boot/dts/qcom/sdm660-blsp.dtsi#L397

https://github.com/Genom-Project/android_kernel_xiaomi_tulip/blob/2e83ae9ce4cdfafe5908c802ae1d159ca5e26753/arch/arm/boot/dts/qcom/sdm660-pinctrl.dtsi#L839

There is also an enabled device, I tried with:

&blsp_spi7 {
	status = "okay";

        spidev@1 {
		compatible = "rohm,dh2228fv";
                reg = <1>;
                spi-cpol;
                spi-max-frequency = <1000000>;
        };
};

But I have write failures, I think should be (similarly to msm8953 devices), the IR blaster

[minlexx]

What is this spi7 used for?

[M0Rf30]

What is this spi7 used for?

In other SoC (msm8953) it's the parent interface of some devices, like IR blaster.
As you can see on tulip is active.