Since those modules are dynamically split into sub-packages, they need
a regexp added to PACKAGES_DYNAMIC in order for the samba recipe to
RPROVIDE those packages. Without that, those packages are only known as
RRECOMMENDS for samba-base, which can be an issue when building an image
with NO_RECOMMENDATIONS = "1".
Signed-off-by: Khem Raj <raj.khem@gmail.com>