Update inherit_from to use local .rubocop_base.yml

[jrafanie]

[skip ci]

[Fryguy]

cc @durandom We should probably change the generator to make the rubocop configs consistent. Please discuss with @jrafanie the best way to do this.

[miq-bot]

Checked commit jrafanie@c56f41a with ruby 2.2.5, rubocop 0.37.2, and haml-lint 0.16.1
0 files checked, 0 offenses detected
Everything looks good. ⭐

[durandom]

I changed that in my generator PR ManageIQ/manageiq#12209 which is yet to be merged.

I dont see another way to propagate changes from miq/.rubocop_base.yml than running the generator again and applying that patch.

This change is also in my PR to bring this repo in line with the generator output #71

[Fryguy]

Closing since this line is part of #71, and I'd prefer merging it in with that.