We set BLDCFG_PCI_MMIO_BASE and BLDCFG_PCI_MMIO_SIZE to the same values everywhere, so we might as well factor them out. As we have equivalent Kconfig options in coreboot, also deprecate overriding them via BLDCFG. TEST=Use abuild --timeless to check that all AGESA f14/f15tn/f16kb mainboards result in identical coreboot binaries. Change-Id: I7244c39d2c2aa02a3a9092ddae98e4ac9da89107 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41595 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Mike Banon <mikebdp2@gmail.com>