Handle image map names that end with ]

The map name ends with ] if it's an anonymous memmap. Add handling
to recognize this.

Test: adb shell imgdiag --zygote-diff-pid=$(pid zygote64) --image-diff-pid=$(pid system_server) --boot-image=/system/framework/boot.art
Bug: 140399904
Change-Id: I45da1e7868e7789d9bbe1f63d595e449be07c2f7
1 file changed