"DRC Mode" and "EQ Mode" ctls in wm8904 codec driver are enum, while
the current driver accesses wrongly via value.integer.value[].  They
have to be via value.enumerated.item[] instead.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>