it83xx: Only use supported VWs on GLK
it83xx: Only use supported VWs on GLK

Gemini Lake-based chipsets support a subset of virtual wires that other
Intel processors do. The current settings prevent the GLK APs from
bootign in some situations; PLTRST# doesn't get reasserted when there is
an error.

See "eSPI Compatibility Specification (562633)" for details.

BRANCH=None
BUG=b:79778835
TEST=Successfully booted bip after a cold reset from servo

Change-Id: I02b403ab6b06cbcae61ac46132018e95988a3d43
Signed-off-by: Justin TerAvest <f2d83486a72e2fb2fbfb163be787ddf5d8d3393e@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1064704
Reviewed-by: Aaron Durbin <af0622ab041e8b0f8e5819838dcc93898196e71f@chromium.org>
Reviewed-by: Jett Rink <9d4aef0593e6843318d99df31597fb6153b89787@chromium.org>
Reviewed-by: Vijay Hiremath <006c712879a3af08bfdb5c2b8491a8b2d5fd73cd@intel.corp-partner.google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec