drbd, spec: fix handling of dkms install scriplet

The most recent DKMS release (3.1.3) removed the common.postinst script from
RPM packages. Instead, dkms package are encouraged to use the dkms commands
directly in the scriptlets.

drbd-kernel.spec

@@ -209,15 +209,16 @@ rm -rf %{buildroot}
 %post -n drbd-dkms
 DKMS_NAME=drbd
 DKMS_VERSION=%{drbd_version}-%{release}
-if [ $1 -gt 1 ] ; then
-	UPGRADE="1"
-fi
-/usr/lib/dkms/common.postinst $DKMS_NAME $DKMS_VERSION /usr/share/$DKMS_NAME-$DKMS_VERSION "" $UPGRADE
+dkms add -m $DKMS_NAME -v $DKMS_VERSION -q --rpm_safe_upgrade || :
+# Rebuild and make available for the currently running kernel:
+dkms build -m $DKMS_NAME -v $DKMS_VERSION -q || :
+dkms install -m $DKMS_NAME -v $DKMS_VERSION -q --force || :
 
 %preun -n drbd-dkms
 DKMS_NAME=drbd
 DKMS_VERSION=%{drbd_version}-%{release}
-dkms remove -m $DKMS_NAME -v $DKMS_VERSION --all
+dkms remove -m $DKMS_NAME -v $DKMS_VERSION -q --all --rpm_safe_upgrade || :
+
 %endif
 
 %changelog