zephyr:test: Fix flaky tcs3400 test suite
zephyr:test: Fix flaky tcs3400 test suite

TCS3400 driver data needs to be restored before and
after each test

BUG=b:236967124
BRANCH=none
TEST=zmake test test-drivers (shuffled)

Signed-off-by: Al Semjonovs <c3a2ecb550cad1e7d5a943ca6241377f7b43ffc4@google.com>
Change-Id: I1b523a3d2552862db6fde1689adcdb9c27ad6c47
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3751768
Reviewed-by: Yuval Peress <50dc11c009bd4d7e9d9d15a383c1743ce5ee82ef@google.com>

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