arm64: dts: rockchip: remove bus-width from mmc nodes in rk3308-roc-cc

The 'bus-width' property for mmc nodes is defined both in
'rk3308.dtsi' and 'rk3308-roc-cc.dts'.
'bus-width' and pinctrl containing the bus-pins
should be in the same file, so remove all entries
from mmc nodes in 'rk3308-roc-cc.dts'.
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20200415131057.2366-1-jbx6244@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3308-roc-cc.dts

@@ -123,7 +123,6 @@ &cpu0 {
 };
 
 &emmc {
-	bus-width = <8>;
 	cap-mmc-highspeed;
 	disable-wp;
 	mmc-hs200-1_8v;
@@ -171,7 +170,6 @@ &pwm0 {
 };
 
 &sdmmc {
-	bus-width = <4>;
 	cap-mmc-highspeed;
 	cap-sd-highspeed;
 	card-detect-delay = <300>;