rpm: update to 4.14.0

Previously oe-core had a development snapshot of rpm, it's better to update
to something more stable.

Removed patches:
0001-Add-PYTHON_ABI-when-searching-for-python-libraries.patch
(upstream is using pkg-config)
0001-When-nice-value-cannot-be-reset-issue-a-notice-inste.patch
(functionality has been moved to a plugin, we disable plugins
for rpm-native)
0012-Use-conditional-to-access-_docdir-in-macros.in.patch
(merged upstream)

Changed patches:
0001-Fix-build-with-musl-C-library.patch
(one previous musl issue has been resolved upstream; another has been added)

Rest of the patches are trivial rebases.

Update the signing oe-selftest so that the reference output matches
the upstream changes.

(From OE-Core rev: b4613b6ce07c295c5d6de6861acf19315acaccb2)

Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/selftest/cases/signing.py

@@ -87,7 +87,7 @@ class Signing(OESelftestTestCase):
         ret = runCmd('%s/rpmkeys --define "_dbpath %s" --checksig %s' %
                      (staging_bindir_native, rpmdb, pkg_deploy))
         # tmp/deploy/rpm/i586/ed-1.9-r0.i586.rpm: rsa sha1 md5 OK
-        self.assertIn('rsa sha1 (md5) pgp md5 OK', ret.output, 'Package signed incorrectly.')
+        self.assertIn('digests signatures OK', ret.output, 'Package signed incorrectly.')
         shutil.rmtree(rpmdb)
 
         #Check that an image can be built from signed packages