Include custom partitions in dumpcache tool

Currently dumpcache use whitelist to include only standard partitions
and also print duplicated entries with symbolic link which makes the
total summary inaccurate.
This patch use blacklist "rootfs/devfs/tmpfs/procfs" to support more
partitions and skip symbolic links.

Test: manual - took a dumpcache
Bug: 31756965
Change-Id: I6038de9a2f3be11179cb30b4c4c6d2e7cd43aaa6
1 file changed