utils/bin: Support passing several bin files to setcap helper scripts

Change-Id: Ifa43f895ae0796d086f35778263aaba07f2e1b7a
diff --git a/utils/bin/osmo-gsm-tester_setcap_net_raw.sh b/utils/bin/osmo-gsm-tester_setcap_net_raw.sh
index 1f3a727..9390e6d 100755
--- a/utils/bin/osmo-gsm-tester_setcap_net_raw.sh
+++ b/utils/bin/osmo-gsm-tester_setcap_net_raw.sh
@@ -1,3 +1,5 @@
 #!/bin/sh
-
-/sbin/setcap cap_net_raw+ep "$1"
+set -x
+for filename in "$@"; do
+        /sbin/setcap cap_net_raw+ep "$filename"
+done