Clean up RPM spec file

[Leif Madsen]

There are a few RPM linting issues reported by rpmlint that could be easily resolved:

rpmlint rpm/contrail/contrail.spec
rpm/contrail/contrail.spec:272: W: unversioned-explicit-obsoletes contrail-api-lib
rpm/contrail/contrail.spec:455: W: unversioned-explicit-obsoletes contrail-libs
rpm/contrail/contrail.spec:701: E: hardcoded-library-path in /usr/lib/python2.7/site-packages/doc/*
rpm/contrail/contrail.spec: W: no-%build-section
rpm/contrail/contrail.spec:238: W: mixed-use-of-spaces-and-tabs (spaces: line 1, tab: line 238)
rpm/contrail/contrail.spec: E: specfile-error "Building release 1705161616\n"
0 packages and 1 specfiles checked; 2 errors, 4 warnings.

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/31657
Submitter: Leif Madsen (<email address hidden>)

[Leif Madsen (leifmadsen)]

Still looking for some reviews on these changes to the RPM spec file.

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/31657
Committed: http://github.com/Juniper/contrail-packages/commit/6283a9bae61f1f21da70628011cc82adfd148257
Submitter: Zuul (<email address hidden>)
Branch: master

commit 6283a9bae61f1f21da70628011cc82adfd148257
Author: Leif Madsen <email address hidden>
Date: Mon May 15 12:59:52 2017 -0400

Clean up RPM specfile

Clean up some issues that rpmlint reports back. Also
word wrap large blocks of description to 80 chars for
better looks.

Closes-bug: #1691164

Change-Id: If554fb9e191c5b4d021aff96a6c5e20fd2b29608
Signed-off-by: Leif Madsen <email address hidden>