OsmoGsmTester: Put several permission categories under cat User Permission

Change-Id: Ie9f846af0311d768c5dd6f9da572c8f6482f4d39
diff --git a/doc/manuals/chapters/install.adoc b/doc/manuals/chapters/install.adoc
index 146dae1..d19f909 100644
--- a/doc/manuals/chapters/install.adoc
+++ b/doc/manuals/chapters/install.adoc
@@ -444,7 +444,7 @@
 your terminal is in turn is picked up in the tcpdump trace, and so forth. When
 testing 'tcpdump' access, make sure to have proper filter expressions in place.
 
-==== Allow Core Files
+===== Allow Core Files
 
 In case a binary run for the test crashes, a core file of the crash should be
 written. This requires a limit rule. Create a file with the required rule:
@@ -464,7 +464,7 @@
 sysctl -w kernel.core_pattern=core
 ----
 
-==== Allow Realtime Priority
+===== Allow Realtime Priority
 
 Certain binaries should be run with real-time priority, like 'osmo-bts-trx'.
 Add this permission on the main unit:
@@ -477,7 +477,7 @@
 Re-login the user to make these changes take effect.
 
 [[user_config_uhd]]
-==== UHD
+===== UHD
 
 Grant permission to use the UHD driver to run USRP devices for osmo-bts-trx, by
 adding the jenkins user to the 'usrp' group:
@@ -486,7 +486,7 @@
 gpasswd -a jenkins usrp
 ----
 
-==== Allow CAP_NET_RAW capability
+===== Allow CAP_NET_RAW capability
 
 Certain binaries require 'CAP_NET_RAW' to be set, like 'osmo-bts-octphy' as it
 uses a 'AF_PACKET' socket.