[committed] MIPS/GAS/doc: Include MIPS options in the man page

[Maciej W. Rozycki]

Include the detailed MIPS option description in the man page along with
other target descriptions and complementing the terse list earlier on.

	gas/
	* doc/as.texinfo (Overview): Select MIPS options for man page 
	inclusion.
---
binutils-mips-gas-man.diff
Index: binutils/gas/doc/as.texinfo
===================================================================
--- binutils.orig/gas/doc/as.texinfo	2017-01-27 21:49:11.000000000 +0000
+++ binutils/gas/doc/as.texinfo	2017-01-29 22:28:40.826417522 +0000
@@ -1351,6 +1351,7 @@ behaviour in the shell.
 @end ifset
 
 @ifset MIPS
+@c man begin OPTIONS
 The following options are available when @value{AS} is configured for
 a MIPS processor.
 
@@ -1593,6 +1594,7 @@ break exception.
 When this option is used, @command{@value{AS}} will issue a warning every
 time it generates a nop instruction from a macro.
 @end table
+@c man end
 @end ifset
 
 @ifset MCORE