media: ti-vpe: cal: rename CAL_HL_IRQ_MASK

CAL_HL_IRQ_MASK macro is used for both WDMA start and end status bits.
For clarity, rename CAL_HL_IRQ_MASK macro to CAL_HL_IRQ_WDMA_END_MASK
and CAL_HL_IRQ_WDMA_START_MASK.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>