HEADS UP: Merging drm update

[Taylor R Campbell <riastradh%NetBSD.org@localhost>]

I'm planning to merge the drm update this weekend -- a cvs import and
merge commit, plus about 1300 commits on top of that from the git
repository.

Please don't commit anything to the following subtrees until done --
if you do, your changes will be lost:

sys/external/bsd/drm2
sys/external/bsd/common

Please don't touch the following additional files outside those
subtrees:

sys/arch/arm/nvidia/tegra_drm.c
sys/arch/arm/nvidia/tegra_drm.h
sys/arch/arm/nvidia/tegra_drm_fb.c
sys/arch/arm/nvidia/tegra_drm_mode.c
sys/arch/arm/nvidia/tegra_fb.c
sys/arch/arm/nvidia/tegra_nouveau.c
sys/arch/arm/nxp/imx6_dwhdmi.c
sys/arch/arm/rockchip/rk_anxdp.c
sys/arch/arm/rockchip/rk_drm.c
sys/arch/arm/rockchip/rk_drm.h
sys/arch/arm/rockchip/rk_dwhdmi.c
sys/arch/arm/rockchip/rk_fb.c
sys/arch/arm/rockchip/rk_vop.c
sys/arch/arm/sunxi/sunxi_drm.c
sys/arch/arm/sunxi/sunxi_drm.h
sys/arch/arm/sunxi/sunxi_dwhdmi.c
sys/arch/arm/sunxi/sunxi_fb.c
sys/arch/arm/sunxi/sunxi_hdmiphy.h
sys/arch/arm/sunxi/sunxi_lcdc.c
sys/arch/arm/sunxi/sunxi_mixer.c
sys/arch/arm/ti/ti_fb.c
sys/arch/arm/ti/ti_lcdc.c
sys/arch/arm/ti/ti_lcdc.h
sys/dev/fdt/fdt_panel.c
sys/dev/fdt/hdmi_connector.c
sys/dev/i2c/anxedp.c
sys/dev/i2c/tda19988.c
sys/dev/ic/anx_dp.c
sys/dev/ic/anx_dp.h
sys/dev/ic/dw_hdmi.c
sys/dev/ic/dw_hdmi.h
sys/dev/ic/dw_hdmi_phy.c
sys/dev/videomode/edidvar.h
sys/modules/*drmkms*
sys/sys/agpio.h