zephyr: Change NPCX BBRAM status information to LOG_INF
zephyr: Change NPCX BBRAM status information to LOG_INF

NPCX BBRAM module provides VBAT/VSBY/VCC power drop information. The
status bit will set when the chip power-up or hibernate PSL wake-up,
which provides the false error alarm. This CL changes the power drop
information to LOG_INF.

BUG=none
BRANCH=none
TEST=Check the log with LOG_LEVEL_INF.

Signed-off-by: Wealian Liao <b980917544b235741b592c0c8e1e53fb264e55ff@nuvoton.corp-partner.google.com>
Change-Id: I36bafedbc694333236ae8824310cfdfcceab7ac8
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3180704
Reviewed-by: Aaron Massey <79529a820df71f45023239a3663736629646cc34@google.com>
Reviewed-by: Denis Brockus <6b21e8190fb5e373363fb95271367073a16474ef@chromium.org>
Commit-Queue: Denis Brockus <6b21e8190fb5e373363fb95271367073a16474ef@chromium.org>

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