V4L/DVB: V4L: vpfe_capture: Add call back function for interrupt clear for vpfe_cfg

For the devices like AM3517, it is expected that driver clears the
interrupt in ISR. Since this is device spcific, callback function
added to the platform_data.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Muralidharan Karicheri <mkaricheri@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

include/media/davinci/vpfe_capture.h

@@ -94,6 +94,8 @@ struct vpfe_config {
 	/* vpfe clock */
 	struct clk *vpssclk;
 	struct clk *slaveclk;
+	/* Function for Clearing the interrupt */
+	void (*clr_intr)(int vdint);
 };
 
 struct vpfe_device {