linux-imx

drm/i915/gvt: remove gvt max port definition

Remove GVT-g private max port definition but use i915 one.

Fix error caused by:
drivers/gpu/drm/i915//gvt/handlers.c:871 dp_aux_ch_ctl_mmio_write() error: buffer overflow 'display->ports' 5 <= 5

Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>