msm: camera: reorganize directory structure

...ers/media/platform/msm/camera_v1/mercury/msm_mercury_hw.c

...ers/media/platform/msm/camera_v1/mercury/msm_mercury_hw.h

...media/platform/msm/camera_v1/mercury/msm_mercury_hw_reg.h

...media/platform/msm/camera_v1/mercury/msm_mercury_macros.h

...dia/platform/msm/camera_v1/mercury/msm_mercury_platform.c

...dia/platform/msm/camera_v1/mercury/msm_mercury_platform.h

...s/media/platform/msm/camera_v1/mercury/msm_mercury_sync.c

...s/media/platform/msm/camera_v1/mercury/msm_mercury_sync.h

drivers/media/platform/msm/camera_v1/msm.c

drivers/media/platform/msm/camera_v1/msm.h

drivers/media/platform/msm/camera_v1/msm_axi_qos.c

drivers/media/platform/msm/camera_v1/msm_camera.c

drivers/media/platform/msm/camera_v1/msm_camirq_router.c

drivers/media/platform/msm/camera_v1/msm_camirq_router.h

drivers/media/platform/msm/camera_v1/msm_gesture.c

drivers/media/platform/msm/camera_v1/msm_isp.c

drivers/media/platform/msm/camera_v1/msm_mctl.c

drivers/media/platform/msm/camera_v1/msm_mctl_buf.c

drivers/media/platform/msm/camera_v1/msm_mctl_pp.c

drivers/media/platform/msm/camera_v1/msm_mem.c