arc/nps: Use arclinux_nps linker emulation for nps

gcc/ChangeLog:

	* config/arc/arc.h (LINK_SPEC): Use arclinux_nps emulation when
	mcpu=nps400.

From-SVN: r244712

gcc/ChangeLog

+2017-01-20  Graham Markall  <graham.markall@embecosm.com>
+
+	* config/arc/arc.h (LINK_SPEC): Use arclinux_nps emulation when
+	mcpu=nps400.
+
 2017-01-20  Martin Jambor  <mjambor@suse.cz>
 
         * hsa.h: Renaed to hsa-common.h.  Adjusted a comment.

gcc/config/arc/arc.h

@@ -121,7 +121,7 @@ extern const char *arc_cpu_to_as (int argc, const char **argv);
 		   -X %{mbig-endian:-EB} \
 		   %{EB} %{EL} \
 		   %{marclinux*} \
-		   %{!marclinux*: -marclinux} \
+		   %{!marclinux*: %{mcpu=nps400:-marclinux_nps; :-marclinux}} \
 		   %{!z:-z max-page-size=0x2000 -z common-page-size=0x2000} \
 		   %{shared:-shared}"
 #else