bdb subpackage has `%description` in the wrong place

[vashirov]

Issue Description
rpminspect reports issues with 389-ds-base spec file:

Subpackage 389-ds-base-bdb on aarch64 carries 'Requires: libback-ldbm.so()(64bit)' which comes from subpackage 389-ds-base but does not carry an explicit package version requirement. Please add 'Requires: 389-ds-base = %{version}-%{release}' to the spec file to avoid the need to test interoperability between various combinations of old and new subpackages.

Currently, %description section comes before Requires and Provides. This is a problem for rpmbuild because it is still reading lines for the description when it encounters the Requires and Provides lines. So those never end up in the subpackage RPM header which causes the rpminspect error.

The %description section needs to come after the Requires and Provides lines.

Related: rpminspect/rpminspect#1427