man: moved virsh command cpu-models

The description of the virsh command 'cpu-models' was written in the
wrong context (i.e. beside the domain states).
This patch moves the command description just to the cpu related
commands like 'cpu-baseline' and 'cpu-compare'.

Signed-off-by: Daniel Hansel <daniel.hansel@linux.vnet.ibm.com>

tools/virsh.pod

@@ -422,10 +422,6 @@ current domain is in.
 
 =over 4
 
-=item B<cpu-models> I<arch>
-
-Print the list of CPU models known for the specified architecture.
-
 =item B<running>
 
 The domain is currently running on a CPU
@@ -596,6 +592,10 @@ specified, the command will return an error when the given CPU is
 incompatible with host CPU and a message providing more details about the
 incompatibility will be printed out.
 
+=item B<cpu-models> I<arch>
+
+Print the list of CPU models known for the specified architecture.
+
 =item B<echo> [I<--shell>] [I<--xml>] [I<arg>...]
 
 Echo back each I<arg>, separated by space.  If I<--shell> is