rpm: Disable perl dependency generation

rpm: Disable perl dependency generation

When rpmdeps files a perl script, it attempts to determine what it provides
and what it requires.  Often the requires are incorrect, within the context
of Wind River Linux.  This results in an error that DNF is unable to install
a package due to one or more unresolved dependencies.

In RPM5 we had disabled this behavior, the alternative is to require that all
perl scripts be 'complete', in that they only require things they absolutely
need and that OE provides.  If we ever enforce that, this commit can be
reverted.  Until they fall back to prior behavior (which also matches ipkg
and deb style packages.)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>