crossgcc: Fix out of bounds array access for nds32le

Patch from Segher Boessenkool <segher@kernel.crashing.org>

Change-Id: Ia91e0d6e50399da38afd8cdc0b92c82e4efa0a08
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/14380
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>

util/crossgcc/patches/gcc-5.2.0_nds32.patch

@@ -0,0 +1,17 @@
+diff -urN gcc-5.2.0.orig/gcc/config/nds32/nds32.md gcc-5.2.0/gcc/config/nds32/nds32.md
+--- gcc-5.2.0.orig/gcc/config/nds32/nds32.md	2015-01-15 22:45:09.000000000 -0800
++++ gcc-5.2.0/gcc/config/nds32/nds32.md	2016-04-14 22:09:09.000000000 -0700
+@@ -2289,11 +2289,11 @@
+   emit_jump_insn (gen_cbranchsi4 (test, operands[0], operands[2],
+ 				  operands[4]));
+ 
+-  operands[5] = gen_reg_rtx (SImode);
++  rtx tmp = gen_reg_rtx (SImode);
+   /* Step C, D, E, and F, using another temporary register operands[5].  */
+   emit_jump_insn (gen_casesi_internal (operands[0],
+ 				       operands[3],
+-				       operands[5]));
++				       tmp));
+   DONE;
+ })
+