[driver/mm_ak8975]: Adding suspend/resume functions.

For the power managementi functionality for the device magnetometer ak8975,
added the power suspend and resume functions.

Change-Id: I40bc799d77dcbcc419200d9a6b6622415b520246
Reviewed-on: http://git-master/r/4790
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Gary King <gking@nvidia.com>
1 file changed