overlaycompare: Support handling overlays from vendor/lineage
overlaycompare: Support handling overlays from vendor/lineage

Change-Id: I74364aeeef7a116fbf185774bef3f44b9fe9943a
Signed-off-by: Adrian DC <01fb3892f39957945220431e7409156544d2f041@gmail.com>

AdrianDC/android_development_shell_tools,AdrianDC/android_development_shell_tools