[NDS32] Provide one valid nds32 assembly instruction to check assembler…

[NDS32] Provide one valid nds32 assembly instruction to check assembler debugging options and features.

gcc/
	* configure: Add nds32 target for dwarf2 debug_line checking.
	* configure.ac: Regenerated.

From-SVN: r270359

gcc/ChangeLog

+2019-04-15  Chung-Ju Wu  <jasonwucj@gmail.com>
+
+	* configure: Add nds32 target for dwarf2 debug_line checking.
+	* configure.ac: Regenerated.
+
 2019-04-14  Jan Hubicka  <hubicka@ucw.cz>
 
 	PR lto/89358

gcc/configure

@@ -27813,7 +27813,7 @@ esac
 # version to the per-target configury.
 case "$cpu_type" in
   aarch64 | alpha | arc | arm | avr | bfin | cris | csky | i386 | m32c | m68k \
-  | microblaze | mips | nios2 | pa | riscv | rs6000 | score | sparc | spu \
+  | microblaze | mips | nds32 | nios2 | pa | riscv | rs6000 | score | sparc | spu \
   | tilegx | tilepro | visium | xstormy16 | xtensa)
     insn="nop"
     ;;

gcc/configure.ac

@@ -4941,7 +4941,7 @@ esac
 # version to the per-target configury.
 case "$cpu_type" in
   aarch64 | alpha | arc | arm | avr | bfin | cris | csky | i386 | m32c | m68k \
-  | microblaze | mips | nios2 | pa | riscv | rs6000 | score | sparc | spu \
+  | microblaze | mips | nds32 | nios2 | pa | riscv | rs6000 | score | sparc | spu \
   | tilegx | tilepro | visium | xstormy16 | xtensa)
     insn="nop"
     ;;