cleanup: move return to separate line
cleanup: move return to separate line

The return type of state machine functions are void, so put the return
statement on its own line.

BRANCH=none
BUG=none
TEST=builds

Change-Id: I30f3922228840dca7441a31f0ef0727a375b351e
Signed-off-by: Jett Rink <9d4aef0593e6843318d99df31597fb6153b89787@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1847774
Reviewed-by: Edward Hill <db1406b34e091703092b6b136bdfeb2c8125fc0e@chromium.org>

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