Add a new error code to IsolatedCompilationEnded

The error code introduced in aosp/2488615 indicates an unexpected, rate
error when composd fails to enable the filesystem seucrity feature
"fs-verity" to a compiled arthifact.

Bug: 272587415
Test: m
Change-Id: I14fc7adee43c74f85c845fa42f6ec12a6de59ec7