msm: camera: Add AXI arbitration logic for VFE

Camera is facing axi overflow issues for full size
modes due to unavailability of AXI bus for VFE. Update
camera driver to send AXI allocate request before starting
the camera.

Change-Id: I2b3249cd85ecf552a042cd690853eb6f4d4b346d
CRs-Fixed: 383532
Signed-off-by: Suresh Vankadara <svankada@codeaurora.org>
diff --git a/arch/arm/mach-msm/include/mach/dal_axi.h b/arch/arm/mach-msm/include/mach/dal_axi.h
index 4e32aa3..84cd37f 100644
--- a/arch/arm/mach-msm/include/mach/dal_axi.h
+++ b/arch/arm/mach-msm/include/mach/dal_axi.h
@@ -17,5 +17,7 @@
 int set_grp2d_async(void);
 int set_grp3d_async(void);
 int set_grp_xbar_async(void);
-
+int axi_allocate(int mode);
+int axi_free(int mode);
+#define AXI_FLOW_VIEWFINDER_HI	243
 #endif  /* _DAL_AXI_H */