add support mipi 1280x800_LCD

hc

2023-03-15 de7d2b82e1d37d435e0b93009a6a472b54b9d6a1

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arcpgu-y := arcpgu_crtc.o arcpgu_hdmi.o arcpgu_sim.o arcpgu_drv.o
obj-$(CONFIG_DRM_ARCPGU) += arcpgu.o