V4L/DVB (9091): gspca: Subdriver m5602 (ALi) added.

This patch adds support for the ALi m5602 usb bridge and is based on
the gspca framework.
It contains code for communicating with 5 different sensors:
OmniVision OV9650, Pixel Plus PO1030, Samsung S5K83A, S5K4AA and
finally Micron MT9M111.

Signed-off-by: Erik Andren <erik.andren@gmail.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
[mchehab@redhat.com: fix m5602/Makefile]
[mchehab@redhat.com: extern debug caused conflicts. Renamed to m5602_debug]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt
index 04c612e..004818fa 100644
--- a/Documentation/video4linux/gspca.txt
+++ b/Documentation/video4linux/gspca.txt
@@ -7,6 +7,7 @@
 xxxx		vend:prod
 ----
 spca501		0000:0000	MystFromOri Unknow Camera
+m5602		0402:5602	ALi Video Camera Controller
 spca501		040a:0002	Kodak DVC-325
 spca500		040a:0300	Kodak EZ200
 zc3xx		041e:041e	Creative WebCam Live!