mkuserimg_mke2fs.py: Package mke2fs.conf

Depending on the environment where mkuserimg_mke2fs.py is used, it's
difficult to locate the configuration file mke2fs.conf.  To avoid
potential issues, let's just package mke2fs.conf with
mkuserimg_mke2fs.py.

Issue: FP2A10-106
Bug: 112937752
Change-Id: I9eb911fc9357e65a666bafd3089461cac8289008
2 files changed