Aswath Govindraju authored Aug 09, 2021 and Tom Rini committed Sep 10, 2021

Add u-boot,dm-spl tag in the pinmux device tree node, required for MMCSD1
subsystem.

Fixes: b6059ddc

 ("arm: dts: k3-am642: Add r5 specific dt support")
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>