mx3fb: Fix print format string
%ul was probably meant as %lu since the former would print
an unsigned value and a letter l.
But in fact the whole value we are printing in u32 anyway, so
we don't need the format to be long. Therefore just drop the l
altogether.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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