Move PATTERN_FRAMEBUFFER_BASE down to 0x00000000+x
Move PATTERN_FRAMEBUFFER_BASE down to 0x00000000+x

So that we can put inputs above it, simply.

mithro/HDMI2USB-litex-firmware,cr1901/HDMI2USB-litex-firmware,mithro/HDMI2USB-litex-firmware,cr1901/HDMI2USB-litex-firmware,mithro/HDMI2USB-litex-firmware,cr1901/HDMI2USB-litex-firmware,mithro/HDMI2USB-litex-firmware,cr1901/HDMI2USB-litex-firmware