examples: remove logging level * everything

Option "logging level ... everything" is broken for quite some time and
might be deprecated in future. Replace it with "logging level ... debug"
in config examples.

Change-Id: I828ef7671b4fb38717526a18ff8e9a5428cd511e
Related: OS#71

openbsc/doc/examples/osmo-bsc_nat/osmo-bsc_nat.cfg

@@ -6,7 +6,7 @@ log stderr
   logging filter all 1
   logging color 1
   logging timestamp 0
-  logging level all everything
+  logging level all debug
   logging level rll notice
   logging level cc notice
   logging level mm notice
@@ -22,14 +22,14 @@ log stderr
   logging level ho notice
   logging level db notice
   logging level ref notice
-  logging level gprs everything
+  logging level gprs debug
   logging level ns info
-  logging level bssgp everything
+  logging level bssgp debug
-  logging level llc everything
+  logging level llc debug
-  logging level sndcp everything
+  logging level sndcp debug
   logging level nat notice
   logging level ctrl notice
-  logging level smpp everything
+  logging level smpp debug
   logging level lglobal notice
   logging level llapd notice
   logging level linp notice

openbsc/doc/examples/osmo-gbproxy/osmo-gbproxy-legacy.cfg

@@ -6,7 +6,7 @@ log stderr
   logging filter all 1
   logging color 1
   logging timestamp 0
-  logging level all everything
+  logging level all debug
   logging level gprs debug
   logging level ns info
   logging level bssgp debug