templates: osmo-pcu: Set log level from dbg to info

Otherwise there's too much output. With debug enabled, iperf3 test from
gprs testsuite generates a 96MB osmo-pcu.log. With log level set to
info, size drops to 1.4M, which is a lot less after compressing in an
archive.

Change-Id: I008234024b9369db42c90ef5d59a013fd2d22718
diff --git a/src/osmo_gsm_tester/templates/osmo-pcu.cfg.tmpl b/src/osmo_gsm_tester/templates/osmo-pcu.cfg.tmpl
index 86cb1a4..da7425c 100644
--- a/src/osmo_gsm_tester/templates/osmo-pcu.cfg.tmpl
+++ b/src/osmo_gsm_tester/templates/osmo-pcu.cfg.tmpl
@@ -2,7 +2,7 @@
   logging color 1
   logging print extended-timestamp 1
   logging print category 1
-  logging level set-all debug
+  logging level set-all info
 pcu
  pcu-socket ${osmo_pcu.pcu_socket_path}
  flow-control-interval 10