mb/google/volteer: ACPI nodes for volteer2_ti50

Unique among the Volteer devices, the volteer2_ti50 variant connects to
the TPM via I2C.  This CL introduces the proper devicestree declarations
for the Linux kernel to recognize that.

overridetree.cb is shared between "sub"-variants volteer2 and
volteer2_ti50, so both will have two TPM nodes, the I2C being disabled
by default.  The odd _ti50 variant then has code in variant.c to enable
the I2C node and disable the SPI node.

BUG=b:173461736
TEST=abuild -t GOOGLE_VOLTEER2{_TI50,} -c max -x

Change-Id: I5576a595bbabc34c62b768f8b3439e35ff6bcf7b
Signed-off-by: Jes Bodi Klinke <jbk@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48223
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions