update coreboot and nuke tianocore

tianocore is a liability for the libreboot project. it's a bloated mess, and
unreliable, broken on many boards, and basically impossible to audit.

i don't trust tianocore, so i'm removing it.

resources/coreboot/kcma-d8-rdimm_2mb/config/libgfxinit_txtmode

@@ -143,14 +143,6 @@ CONFIG_MAX_REBOOT_CNT=10
 CONFIG_OVERRIDE_DEVICETREE=""
 CONFIG_BOOT_DEVICE_SPI_FLASH_BUS=0
 CONFIG_FMDFILE=""
-# CONFIG_BOARD_EMULATION_QEMU_AARCH64 is not set
-# CONFIG_BOARD_EMULATION_QEMU_ARMV7 is not set
-# CONFIG_BOARD_EMULATION_QEMU_X86_I440FX is not set
-# CONFIG_BOARD_EMULATION_QEMU_POWER8 is not set
-# CONFIG_BOARD_EMULATION_QEMU_X86_Q35 is not set
-# CONFIG_BOARD_EMULATION_QEMU_RISCV_RV64 is not set
-# CONFIG_BOARD_EMULATION_QEMU_RISCV_RV32 is not set
-# CONFIG_BOARD_EMULATION_SPIKE_RISCV is not set
 # CONFIG_VBOOT is not set
 CONFIG_MMCONF_BASE_ADDRESS=0xc0000000
 CONFIG_POST_DEVICE=y
@@ -421,11 +413,9 @@ CONFIG_COLLECT_TIMESTAMPS_TSC=y
 #
 CONFIG_HAVE_VGA_TEXT_FRAMEBUFFER=y
 CONFIG_MAINBOARD_HAS_NATIVE_VGA_INIT=y
-# CONFIG_MAINBOARD_FORCE_NATIVE_VGA_INIT is not set
+CONFIG_MAINBOARD_FORCE_NATIVE_VGA_INIT=y
 # CONFIG_MAINBOARD_HAS_LIBGFXINIT is not set
 CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT=y
-# CONFIG_VGA_ROM_RUN is not set
-# CONFIG_NO_GFX_INIT is not set
 # CONFIG_MULTIPLE_VGA_ADAPTERS is not set
 
 #
@@ -549,8 +539,6 @@ CONFIG_VGA=y
 # Trusted Platform Module
 #
 CONFIG_USER_NO_TPM=y
-# CONFIG_USER_TPM1 is not set
-# CONFIG_USER_TPM2 is not set
 
 #
 # Memory initialization
@@ -647,13 +635,8 @@ CONFIG_PAYLOAD_NONE=y
 # CONFIG_PAYLOAD_YABITS is not set
 # CONFIG_PAYLOAD_LINUX is not set
 # CONFIG_PAYLOAD_TIANOCORE is not set
-# CONFIG_SEABIOS_STABLE is not set
-# CONFIG_SEABIOS_MASTER is not set
-# CONFIG_SEABIOS_REVISION is not set
 CONFIG_PAYLOAD_OPTIONS=""
 # CONFIG_PXE is not set
-# CONFIG_COMPRESSED_PAYLOAD_LZMA is not set
-# CONFIG_COMPRESSED_PAYLOAD_LZ4 is not set
 # CONFIG_PAYLOAD_IS_FLAT_BINARY is not set
 CONFIG_COMPRESS_SECONDARY_PAYLOAD=y