mb/google/galdos/var/lars: Implement touchscreen power sequencing

Since lars has two touchscreen options, we need to determine which (if
any) are present on a given device at runtime so that there are not
multiple ACPI touchscreen devices (as it makes Windows unhappy).
Implement power sequencing and runtime detection for both touchscreen
options.

TEST=build/boot Win11/Linux on google/lars, verify touchscreen detected
and functional under both OSes.

Change-Id: I49ccb29ec4589315a4abe3c0ea8fa76f97080bcd
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79311
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>

0 files changed, 0 insertions, 0 deletions