add enviroment variable to each step in GNUAutotools factory

[torgiren]

Added env to others steps.
Needed by me to make:
VERBOSE=1 make check

[tardyp]

looks good to me.

[sa2ajj]

What about reconf step before? Would it not need the same environment?

[codecov-io]

Current coverage is 84.58%

Merging #1930 into master will not affect coverage as of a927771

@@            master   #1930   diff @@
======================================
  Files          320     320       
  Stmts        31126   31126       
  Branches         0       0       
  Methods          0       0       
======================================
  Hit          26328   26328       
  Partial          0       0       
  Missed        4798    4798       

Review entire Coverage Diff as of a927771

---

Uncovered Suggestions

1. +0.11% via ...ot/status/builder.py#381...414
2. +0.09% via ...ot/status/builder.py#453...481
3. +0.09% via ...dbot/changes/mail.py#478...505
4. See 7 more...

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[sa2ajj]

sorry for the delay and thank you for the contribution!