Add vendor dumpsys.

$ adb shell /vendor/bin/dumpsys -l
<hangs>
$ adb shell /vendor/bin/sh -c "/vendor/bin/dumpsys -l"
Currently running services:
...
$ adb root
$ adb shell /vendor/bin/dumpsys -l
Currently running services:
...

Bug: 123433249
Test: manual (see above)
Change-Id: I4d74be3ef43e7d65154be27c4cf85ab32e09dfef
2 files changed