LF-3334-01: media: isi: cap: fix v4l2-compliance G_FMT test fail issue

LF-3334-01: media: isi: cap: fix v4l2-compliance G_FMT test fail issue

Fix v4l2-compliance G_FMT test fail issue, error log as bellow:
  test VIDIOC_G_FMT: FAIL
    fail: ../../../v4l-utils-1.18.1/utils/v4l2-compliance/v4l2-test-formats.cpp(343): pixelformat != V4L2_PIX_FMT_JPEG && pixelformat != G
    fail: ../../../v4l-utils-1.18.1/utils/v4l2-compliance/v4l2-test-formats.cpp(464): testColorspace(node->has_inputs || node->has_output)

Signed-off-by: Guoniu.zhou <guoniu.zhou@nxp.com>
Reviewed-by: Robby Cai <robby.cai@nxp.com>