This patch fixup below sparse errors

${LINUX}/sound/soc/sh/fsi.c:1459:9: \
	error: incompatible types in conditional expression (different base types)
${LINUX}/sound/soc/sh/fsi.c:1634:25: \
	error: incompatible types in conditional expression (different base types)
${LINUX}/sound/soc/sh/fsi.c:1639:17: \
	error: incompatible types in conditional expression (different base types)
${LINUX}/sound/soc/sh/fsi.c:2093:9: \
	error: incompatible types in conditional expression (different base types)
${LINUX}/sound/soc/sh/fsi.c:2105:9: \
	error: incompatible types in conditional expression (different base types)
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>