arm64: dts: meson: libretech-cc: set eMMC as removable

The eMMC on this board is add-on module which is not mandatory. Removing
'non-removable' property should prevent some errors when booting a board
w/o an eMMC module present.

Fixes: 72fb2c8 ("ARM64: dts: meson-gxl-s905x-libretech-cc: fixup board definition")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Martin Blumenstingl<martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts

@@ -255,7 +255,6 @@
 	cap-mmc-highspeed;
 	mmc-ddr-3_3v;
 	max-frequency = <50000000>;
-	non-removable;
 	disable-wp;
 
 	mmc-pwrseq = <&emmc_pwrseq>;