zephyr: volteer: Enable Fast Role Swap triggered by PPC
zephyr: volteer: Enable Fast Role Swap triggered by PPC

Volteer uses the Power Path Controller to trigger Fast Role Swap.
Enable this in the config.

BUG=b:175434113
BRANCH=none
TEST=build zephyr with another CL and see that the code is included

Signed-off-by: Simon Glass <c00b0378376498bd9cd974c388df8854c0131d27@chromium.org>
Change-Id: I798179b2d21409e9d8d9e7d05c46e2121d30a693
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2677183
Reviewed-by: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>
Reviewed-by: Keith Short <f6d578f97033c25f1206cb57d52f358974c82954@chromium.org>

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