add * <exclusions> to srm-shell POM

add * <exclusions> to srm-shell POM

This avoids the following in target/feature/feature.xml :

  <bundle>mvn:org.fusesource.jansi/jansi/1.17</bundle>
  <bundle>mvn:org.apache.karaf.jaas/org.apache.karaf.jaas.boot/4.1.5</bundle>

The idea being that perhaps this causes some timing issues duirng
feature resolution related to the failing distribution.. just a
suspicion, not proven, as that problem does not locally reproduce.

Change-Id: I71deaffac703266bcb870cf55c8f8c72e73987b8
Signed-off-by: Michael Vorburger <vorburger@redhat.com>