TCPMv2: cable checking for USB4
TCPMv2: cable checking for USB4

enter_usb_cable_is_capable() doesn't handle non-Emark cable case.
If cable is neither passive cable nor active cable, return false.

BUG=none
BRANCH=none
TEST=make buildall

Signed-off-by: li feng <0fd15d95d647a38d004d7ac9a3d0587bb1c98551@intel.com>
Change-Id: I82c9df842d05fb78535c8d6d310bf6d1913c25b8
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3153356
Reviewed-by: Vijay Hiremath <006c712879a3af08bfdb5c2b8491a8b2d5fd73cd@intel.com>
Reviewed-by: Keith Short <f6d578f97033c25f1206cb57d52f358974c82954@chromium.org>
Commit-Queue: Keith Short <f6d578f97033c25f1206cb57d52f358974c82954@chromium.org>

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