input: sensors: add enable handler for mma8x5x

The kernel will create the general enable interface in "/sys/class
/sensors/xxx" for each sensor driver using sensor class interface.

Change-Id: I214f99ba96ff4c1124b277f0f49ca46a4837e202
Signed-off-by: Oliver Wang <mengmeng@codeaurora.org>
1 file changed