dtc: Remove unused lexer function

[David Gibson]

dtc does not use the input() function in flex.  Apparently on some gcc
versions the unused function will cause warnings.  Therefore, this
patch removes the function by using the 'noinput' option to flex.

Signed-off-by: David Gibson <david at gibson.dropbear.id.au>

Index: dtc/dtc-lexer.l
===================================================================
--- dtc.orig/dtc-lexer.l	2008-07-29 14:48:08.000000000 +1000
+++ dtc/dtc-lexer.l	2008-07-29 14:48:27.000000000 +1000
@@ -18,7 +18,7 @@
  *                                                                   USA
  */
 
-%option noyywrap nounput yylineno
+%option noyywrap nounput noinput yylineno
 
 %x INCLUDE
 %x BYTESTRING

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson