misc: add gps host wake driver

misc: add gps host wake driver

- Parse gps_en gpio from DT and create a sysfs
node to set gpio value
- Register irq for geofencing feature
- Add binding doc for gps_wake driver

bug 200127146

Change-Id: I01a8b5ee39763068649e639f4883036f06a1be6a
Signed-off-by: Manikanta <mmaddireddy@nvidia.com>
Reviewed-on: http://git-master/r/789005
GVS: Gerrit_Virtual_Submit
Reviewed-by: Nagarjuna Kristam <nkristam@nvidia.com>
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/792854
Reviewed-by: Srinivas Ramachandran <srinivasra@nvidia.com>
Reviewed-by: Ashutosh Jha <ajha@nvidia.com>