V4L/DVB (8825): gspca: More controls for pac73xx and new webcam 093a:2624.

-Add usb id for 093a:2624 (pac7302)
-Report some controls to userspace with 7302 only, as they are 7302 only
-Add gain and exposure controls
-Add autogain
-Fix 7302 imaged being mirrored by default

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt
index 2dd2f774..c503467 100644
--- a/Documentation/video4linux/gspca.txt
+++ b/Documentation/video4linux/gspca.txt
@@ -188,6 +188,7 @@
 pac7311		093a:260e	Gigaware VGA PC Camera, Trust WB-3350p, SIGMA cam 2350
 pac7311		093a:260f	SnakeCam
 pac7311		093a:2621	PAC731x
+pac7311		093a:2624	PAC7302
 zc3xx		0ac8:0302	Z-star Vimicro zc0302
 vc032x		0ac8:0321	Vimicro generic vc0321
 vc032x		0ac8:0323	Vimicro Vc0323