mainboard/google/kahlee: Update Grunt devicetree.
Grunt's devicetree dropped some entries when it was split from the
kahlee variant. This commit restores:
spd_addr_lookup - memory information for AGESA
dram_clear_on_reset - keeps DRAM contents on reset
uma_mode - needed for vbios
uma_size - needed for vbios
Change-Id: I1d8cdc97594867f1d706318370055087976a5104
Signed-off-by: Justin TerAvest <teravest@chromium.org>
Reviewed-on: https://review.coreboot.org/23099
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-by: Martin Roth <martinroth@google.com>