riscv: dts: t-head: Add sdhci and emmc nodes

Add SDHCI and EMMC controlles nodes on TH-1520 SoC. And enable them for
Lichee module 4A.

Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Maksim Kiselev <bigunclemax@gmail.com>
2 files changed