This is a driver to handle SiRFStar GNSS chip power controls, a device node is created to interact with driver power controls and exposes set of IOCTLs. These IOCTLs provide mechanisms to transition of GNSS receiver power state. Change-Id: I96056fc860c5be66e4b5bbdfecf6b572eaae971f Signed-off-by: Naresh Munagala <nareshm@codeaurora.org>