msm: camera: Change camera server into a video node

Convert ioctl and server node to be compliant with
v4l2 architecture.
Add multiple control and event queue to
support multiple camera instance

Change-Id: Idcb8533e15599f7fb0ad621c3da6b19235fa64f4
Signed-off-by: Kevin Chan <ktchan@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-msm7x30.c b/arch/arm/mach-msm/board-msm7x30.c
index 6bc21bb..7fa4968 100644
--- a/arch/arm/mach-msm/board-msm7x30.c
+++ b/arch/arm/mach-msm/board-msm7x30.c
@@ -993,8 +993,14 @@
 	.camera_type = BACK_CAMERA_2D,
 };
 
+static struct platform_device msm_camera_server = {
+	.name = "msm_cam_server",
+	.id = 0,
+};
+
 void __init msm7x30_init_cam(void)
 {
+	platform_device_register(&msm_camera_server);
 	platform_device_register(&msm_device_csic0);
 	platform_device_register(&msm_device_vfe);
 	platform_device_register(&msm_device_vpe);