S/390: Doc: Add missing cpu values z196, zEC12.

	* doc/invoke.texi: Add missing cpu values (z196, zEC12).

From-SVN: r221353

gcc/ChangeLog

+2015-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
+	* doc/invoke.texi: Add missing cpu values (z196, zEC12).
+
 2015-03-11  Michael Meissner  <meissner@linux.vnet.ibm.com>
 
 	PR target/65242

gcc/doc/invoke.texi

@@ -20142,7 +20142,7 @@ The default is to not print debug information.
 Generate code that runs on @var{cpu-type}, which is the name of a system
 representing a certain processor type.  Possible values for
 @var{cpu-type} are @samp{g5}, @samp{g6}, @samp{z900}, @samp{z990},
-@samp{z9-109}, @samp{z9-ec} and @samp{z10}.
+@samp{z9-109}, @samp{z9-ec}, @samp{z10},  @samp{z196}, and @samp{zEC12}.
 When generating code using the instructions available on z/Architecture,
 the default is @option{-march=z900}.  Otherwise, the default is
 @option{-march=g5}.