media: rkisp1: Fix enum_framesizes accepting invalid pixel formats

media: rkisp1: Fix enum_framesizes accepting invalid pixel formats

Reject unsupported pixel formats in rkisp1_enum_framesizes() to
fix v4l2-compliance failure.

v4l2-compliance test failure:

fail: ../utils/v4l2-compliance/v4l2-test-formats.cpp(403): Accepted framesize for invalid format
test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: FAIL

Tested on: Debix i.MX8MP Model A
Kernel version: v6.17-rc3
v4l2-compliance: 1.31.0-5387

Signed-off-by: Tarang Raval <tarang.raval@siliconsignals.io>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Link: https://patch.msgid.link/20250829101425.95442-1-tarang.raval@siliconsignals.io
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>