Fixed errors in documentation that caused configure script to fail when bootstrapping for ARM build

texinfo 5 has changed syntax for certain commands which led to failure when
building binutils because the documentation could not be built.
Upstream report: https://sourceware.org/bugzilla/show_bug.cgi?id=15212.

Signed-off-by: Adrien Destugues <pulkomandy@pulkomandy.tk>

binutils/gas/doc/c-arc.texi

@@ -220,7 +220,7 @@ The extension instructions are not macros.  The assembler creates
 encodings for use of these instructions according to the specification
 by the user.  The parameters are:
 
-@table @bullet
+@table @code
 @item @var{name}
 Name of the extension instruction 
 

binutils/gas/doc/c-arm.texi

@@ -390,7 +390,7 @@ ARM and THUMB instructions had their own, separate syntaxes.  The new,
 @code{unified} syntax, which can be selected via the @code{.syntax}
 directive, and has the following main features:
 
-@table @bullet
+@table @code
 @item
 Immediate operands do not require a @code{#} prefix.
 
@@ -468,6 +468,9 @@ so @samp{: @var{align}} is used instead.  For example:
 
 @node ARM Floating Point
 @section Floating Point
+@menu
+* ARM-Relocations::
+@end menu
 
 @cindex floating point, ARM (@sc{ieee})
 @cindex ARM floating point (@sc{ieee})

binutils/gas/doc/c-mips.texi

@@ -234,7 +234,7 @@ the @samp{mad} and @samp{madu} instruction, and to not schedule @samp{nop}
 instructions around accesses to the @samp{HI} and @samp{LO} registers.
 @samp{-no-m4650} turns off this option.
 
-@itemx -m3900
+@item -m3900
 @itemx -no-m3900
 @itemx -m4100
 @itemx -no-m4100

binutils/gas/doc/c-score.texi

@@ -37,7 +37,7 @@ implicitly with the @code{gp} register. The default value is 8.
 @item -EB
 Assemble code for a big-endian cpu
 
-@itemx -EL
+@item -EL
 Assemble code for a little-endian cpu
 
 @item -FIXDD 
@@ -49,13 +49,13 @@ Assemble code for no warning message for fix data dependency
 @item -SCORE5
 Assemble code for target is SCORE5
 
-@itemx -SCORE5U
+@item -SCORE5U
 Assemble code for target is SCORE5U
 
-@itemx -SCORE7
+@item -SCORE7
 Assemble code for target is SCORE7, this is default setting
 
-@itemx -SCORE3
+@item -SCORE3
 Assemble code for target is SCORE3
 
 @item -march=score7

binutils/gas/doc/c-tic54x.texi

@@ -109,7 +109,7 @@ In this example, x is replaced with SYM2; SYM2 is replaced with SYM1, and SYM1
 is replaced with x.  At this point, x has already been encountered
 and the substitution stops.
 
-@smallexample @code
+@smallexample
  .asg   "x",SYM1 
  .asg   "SYM1",SYM2
  .asg   "SYM2",x
@@ -126,14 +126,14 @@ Substitution may be forced in situations where replacement might be
 ambiguous by placing colons on either side of the subsym.  The following
 code: 
 
-@smallexample @code
+@smallexample
  .eval  "10",x
 LAB:X:  add     #x, a
 @end smallexample
 
 When assembled becomes:
 
-@smallexample @code
+@smallexample
 LAB10  add     #10, a
 @end smallexample
 
@@ -309,7 +309,7 @@ The @code{LDX} pseudo-op is provided for loading the extended addressing bits
 of a label or address.  For example, if an address @code{_label} resides
 in extended program memory, the value of @code{_label} may be loaded as
 follows:
-@smallexample @code
+@smallexample
  ldx     #_label,16,a    ; loads extended bits of _label
  or      #_label,a       ; loads lower 16 bits of _label
  bacc    a               ; full address is in accumulator A
@@ -345,7 +345,7 @@ Assign @var{name} the string @var{string}.  String replacement is
 performed on @var{string} before assignment.
 
 @cindex @code{eval} directive, TIC54X
-@itemx .eval @var{string}, @var{name}
+@item .eval @var{string}, @var{name}
 Evaluate the contents of string @var{string} and assign the result as a
 string to the subsym @var{name}.  String replacement is performed on
 @var{string} before assignment.