FROMGIT: platform/chrome: cros_ec_lpc: Handle EC without CRS section

Fix logic to support GOOG0004 device without CRS section.
Instead of failing, assume there are not memory mapped EC registers.

Fixes: be4fccb5 ("platform/chrome: cros_ec_lpc: Support direct EC register memory access")
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Link: https://lore.kernel.org/r/20250114202122.2352277-1-gwendal@chromium.org


Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
(cherry picked from commit fccebbdd
 https://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git for-next)

BUG=b:389567007, b:354066052
TEST=Check on nautilus IMU sensors are present

Change-Id: Ia9ecc48430e74c94cbfe539e35da66f4923f2880
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/6168955


Reviewed-by: Sean Paul <sean@poorly.run>
Reviewed-by: Tzung-Bi Shih <tzungbi@chromium.org>
Tested-by: Gwendal Grignou <gwendal@chromium.org>
Commit-Queue: Gwendal Grignou <gwendal@chromium.org>
Auto-Submit: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Hubert Mazur <hmazur@google.com>