perl: fix missing dependency for perl-misc

perl: fix missing dependency for perl-misc

"perl-misc" package is adding tens of perl utilities which have
depencies on perl-modules.

For example, in order for "prove" to work correctly following modules
are needed:

RDEPENDS_perl-misc += "perl perl-module-app-prove
perl-module-overloading perl-module-tap-base perl-module-file-glob
perl-module-tap-formatter-console perl-module-tap-formatter-base
perl-module-tap-formatter-file perl-module-tap-formatter-session
perl-module-tap-parser perl-module-tap-parser-aggregator
perl-module-tap-parser-scheduler"

If we compile a list of modules needed by the utilities added by
"perl-misc" we may end up having to add hundreds of modules to
RDEPENDS_perl-misc.

Rather than adding hundreds of dependencies only perl-modules was added.

Signed-off-by: Catalin Enache <catalin.enache@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>