TCPMv2: check active cable SVID support
TCPMv2: check active cable SVID support

According to TBT4 PD flow, SOP' discovery SVID should support
USB_VID_INTEL to enable Thunderbolt Alt mode.

BUG=none
BRANCH=master
TEST=1. Volteer EVT connects to TBT dock with TBT passive cable,
EC can enter TBT mode
2. Volteer EVT connects to TBT dock with TBT active cable which
   supports SVID USB_VID_INTEL, EC can enter TBT mode.

Signed-off-by: li feng <0fd15d95d647a38d004d7ac9a3d0587bb1c98551@intel.com>
Change-Id: I10e16bff89175fe8425a6c7afc31141a6a5d573f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2441962
Reviewed-by: Abe Levkoy <2e1ad7039298f93262cf06bbb457275fb3e2ecb5@chromium.org>

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