media: ti-vpe: cal: Replace hardcoded BIT() value with macro

Replace the hardcoded BIT(3) value with CAL_CSI2_PPI_CTRL_FRAME_MASK to
increase readability.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/ti-vpe/cal-camerarx.c

@@ -485,7 +485,8 @@ void cal_camerarx_disable_irqs(struct cal_camerarx *phy)
 
 void cal_camerarx_ppi_enable(struct cal_camerarx *phy)
 {
-	cal_write(phy->cal, CAL_CSI2_PPI_CTRL(phy->instance), BIT(3));
+	cal_write(phy->cal, CAL_CSI2_PPI_CTRL(phy->instance),
+		  CAL_CSI2_PPI_CTRL_FRAME_MASK);
 	cal_write_field(phy->cal, CAL_CSI2_PPI_CTRL(phy->instance),
 			1, CAL_CSI2_PPI_CTRL_IF_EN_MASK);
 }