[Patch]: fix arm-eabi build failure on non-C99 systems

[Tristan Gingold]

Hello,

gas/config/tc-arm.c uses int64_t, which isn't available on non C99 compliant systems (like mingw32).
As bfd provides typedef for these types, better to use them.

No regression for arm-eabi.
Ok to commit ?

Tristan.

gas/
2014-09-16  Tristan Gingold  <gingold@adacore.com>

	* config/tc-arm.c (move_or_literal_pool, add_to_lit_pool): Use
	bfd_int64_t instead of int64_t.

index cd3db2b..5077f87 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -3200,7 +3200,7 @@ add_to_lit_pool (unsigned int nbytes)
       imm1 = inst.operands[1].imm;
       imm2 = (inst.operands[1].regisimm ? inst.operands[1].reg
 	       : inst.reloc.exp.X_unsigned ? 0
-	       : ((int64_t) inst.operands[1].imm) >> 32);
+	       : ((bfd_int64_t) inst.operands[1].imm) >> 32);
       if (target_big_endian)
 	{
 	  imm1 = imm2;
@@ -7812,7 +7812,7 @@ move_or_literal_pool (int i, enum lit_type t, bfd_boolean mode_3)
 			   ? inst.operands[1].reg
 			   : inst.reloc.exp.X_unsigned
 			     ? 0
-			     : ((int64_t)((int) immlo)) >> 32;
+			     : ((bfd_int64_t)((int) immlo)) >> 32;
 	  int cmode = neon_cmode_for_move_imm (immlo, immhi, FALSE, &immbits,
 					       &op, 64, NT_invtype);