[media] staging/dt3155v4l: use PCI_VENDOR_ID_INTEL

Use PCI_VENDOR_ID_INTEL instead of creating its own vendor ID #define.

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>