libcamera: rpi: Draw sensor delays from CameraSensorProperties

Now that we have camera sensor control application delay values in
the CameraSensorProperties class, remove the duplicated definitions
in the RPi IPA's CameraSensorHelpers and update the pipeline handler
to use the values from CameraSensorProperties.

Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

include/libcamera/ipa/raspberrypi.mojom

@@ -12,10 +12,6 @@ import "include/libcamera/ipa/core.mojom";
 const uint32 MaxLsGridSize = 0x8000;
 
 struct SensorConfig {
-	uint32 gainDelay;
-	uint32 exposureDelay;
-	uint32 vblankDelay;
-	uint32 hblankDelay;
 	uint32 sensorMetadata;
 };