elani2chid.update.policy: Add mprotect

Noticed a crash in elan_i2chid_iap with mprotect.

BUG=b:186803271
TEST=no more mprotect fails.

Change-Id: I86e1c4ebc26333d0edc11fce868b459755036c43
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/touch_updater/+/2901618
Tested-by: Manoj Gupta <manojgupta@chromium.org>
Auto-Submit: Manoj Gupta <manojgupta@chromium.org>
Reviewed-by: Harry Cutts <hcutts@chromium.org>
Commit-Queue: Manoj Gupta <manojgupta@chromium.org>
1 file changed