misc: Add Support for GPS via GPIO Control

Signed-off-by: AdiPat <adithemagnificent@gmail.com>
gps: Get rid of sec_class and implement gps_class.

Signed-off-by: AdiPat <adithemagnificent@gmail.com>
sensors_core: Fix sensors_unregister()

Signed-off-by: AdiPat <adithemagnificent@gmail.com>