correct the label name to match the GraceDB database

gstlal-inspiral/bin/gstlal_ll_inspiral_event_uploader

@@ -529,7 +529,7 @@ class EventUploader(events.EventProcessor):
 				# add labels
 				labels = []
 				if self.is_injection_job:
-					labels.append(['SubSolarMASS'])
+					labels.append(['SUBSOLAR_MASS'])
 				if 'apply_snr_optimized_label' in event['favored'] and event['favored']['apply_snr_optimized_label']:
 					labels.append(['SNR_OPTIMIZED']) # don't apply the SNR_OPTIMIZED label for skymap optimizer events