msm: camera: Add buffer manager driver.

This change adds a subdev for buffer management.

Change-Id: I94c9aaa0560497c9d15299f30d0b4887e244d986
Signed-off-by: Jignesh Mehta <jigneshm@codeaurora.org>
[smuckle@codeaurora.org: backported from msm-3.7]
Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
diff --git a/include/media/Kbuild b/include/media/Kbuild
index 43cc3b9..060047f 100644
--- a/include/media/Kbuild
+++ b/include/media/Kbuild
@@ -13,3 +13,4 @@
 header-y += msm_cam_sensor.h
 header-y += msmb_isp.h
 header-y += msmb_ispif.h
+header-y += msmb_generic_buf_mgr.h