mb/google/brya/vell: Move WWAN devices for vell
This was to merge PCIe ACPI code to WWAN device. Also, RTD3 devices are
add to overridetree.cb where WWAN is present for vell.
BUG=none
BRANCH=firmware-brya-14505.B
TEST=emerge-brya coreboot
Signed-off-by: Robert Chen <robert.chen@quanta.corp-partner.google.com>
Change-Id: If27abcf31ed948899bfaecbe8ef494fe8a80609b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62771
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>