MIPS: Documentation fix for -mlxc1-sxc1

gcc/

	* doc/invoke.texi: Add missing -mlxc1-sxc1 options to
	overall option summary.

From-SVN: r244665

gcc/ChangeLog

+2017-01-19  Matthew Fortune  <matthew.fortune@imgtec.com>
+
+	* doc/invoke.texi: Add missing -mlxc1-sxc1 options to
+	overall option summary.
+
 2017-01-19  Jiong Wang  <jiong.wang@arm.com>
 
 	* config/aarch64/aarch64-arches.def: New entry for "armv8.3-a".

gcc/doc/invoke.texi

@@ -909,6 +909,7 @@ Objective-C and Objective-C++ Dialects}.
 -mcompact-branches=@var{policy} @gol
 -mfp-exceptions  -mno-fp-exceptions @gol
 -mvr4130-align  -mno-vr4130-align  -msynci  -mno-synci @gol
+-mlxc1-sxc1 -mno-lxc1-sxc1 @gol
 -mrelax-pic-calls  -mno-relax-pic-calls  -mmcount-ra-address @gol
 -mframe-header-opt  -mno-frame-header-opt}