lpdump: Add info about super partition

Currently we do not print info about super partition in lpdump.
Let's add it so we can get to know super's size and used size.
Available space can be inferred from these two.

Bug: 335891825
Test: lpdump --json
Test: atest CtsEdiHostTestCases

Change-Id: Ic3dea6346492c1f94c6432a96c55bfc6164d1b89
Signed-off-by: Sandeep Dhavale <dhavale@google.com>
2 files changed