ARM: dts: sbc-t54: fix mux mode comment style

Follow the comment style of mode0_name.modeX_name for pins
which mux mode differs from MUX_MODE0.

Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
1 file changed