zephyr: sn5s330: Move #ifdef to correct test
zephyr: sn5s330: Move #ifdef to correct test

Per @aaronmassey, this #ifdef statement should not actually be there and
belongs on test_sn5s330_set_vconn_fet. Use the preferred style for
conditionally excluding tests.

BRANCH=None
BUG=b:225245353
TEST=zmake -D test test-drivers

Signed-off-by: Tristan Honscheid <1e17951ff5ffc8afe254954c03de64afef62fe52@google.com>
Change-Id: Id2035aa9d90841d81d814438cf9f4ac4d8e2e2ad
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3558909
Reviewed-by: Aaron Massey <79529a820df71f45023239a3663736629646cc34@google.com>

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