zephyr: Change default values for PD_TCPC_VCONN
zephyr: Change default values for PD_TCPC_VCONN

There were no ITxxx drivers and SYV682X_NO_CC Kconfig, so
default value for PD_TCPC_VCONN was different in Zephyr and CrOS.
This commit adds default values for different configs.

BUG=b:182500469
BRANCH=none
TEST=Compare Kconfig.usbc with config.h

Signed-off-by: Michał Barnaś <77666125932addc6fc525b281b518fd8fd2203d8@semihalf.com>
Change-Id: I2992fcd02c80957ed736b378dee2849dff03a315
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2919911
Reviewed-by: Yuval Peress <50dc11c009bd4d7e9d9d15a383c1743ce5ee82ef@chromium.org>
Reviewed-by: Denis Brockus <6b21e8190fb5e373363fb95271367073a16474ef@chromium.org>

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