ib: display whether profile comes with image metadata

Having image metadata (and signature) appended is a condition for
semi-automated sysupgrade, hence IB needs to be able to tell which
images will end up with metadata.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

scripts/target-metadata.pl

@@ -422,6 +422,7 @@ sub gen_profile_mk() {
 		print "PROFILE_NAMES = ".join(" ", map { $_->{id} } @{$cur->{profiles}})."\n";
 		foreach my $profile (@{$cur->{profiles}}) {
 			print $profile->{id}.'_NAME:='.$profile->{name}."\n";
+			print $profile->{id}.'_HAS_IMAGE_METADATA:='.$profile->{has_image_metadata}."\n";
 			print $profile->{id}.'_PACKAGES:='.join(' ', @{$profile->{packages}})."\n";
 		}
 	}