tree 718c951bd7419b3cc5ce40b43060f2719f030dcb
parent c275c68dfd9192682a69b8b113ba92823ad0fd11
author Yifan Hong <elsk@google.com> 1610479659 -0800
committer Yifan Hong <elsk@google.com> 1610479675 -0800

GetBootImageBuildProp returns None if file does not exist

If system/etc/ramdisk/build.prop does not exist in the ramdisk,
GetBootImageBuildProp should return None instead of a path
to a non-existant file.

Test: pass
Bug: 177171706
Change-Id: I34e447bc315d203e136e8c0d59d00961f81301e3