[PR testsuite/118055] Trivial testsuite adjustment for m68k target

After a bit of a prod from Hans...

Make the obvious change to these tests to get them passing again on m68k.

	PR testsuite/118055

gcc/testsuite

	* gcc.dg/tree-ssa/pr83403-1.c: Add m68k*-*-* to targets needing
	additional arguments for peeling.
	* gcc.dg/tree-ssa/pr83403-2.c: Similarly.

gcc/testsuite/gcc.dg/tree-ssa/pr83403-1.c

 /* { dg-do compile } */
 /* { dg-options "-O3 -funroll-loops -fdump-tree-lim2-details" } */
 /* { dg-additional-options "--param max-completely-peeled-insns=200" { target { s390*-*-* } } } */
-/* { dg-additional-options "--param max-completely-peeled-insns=300" { target { arm*-*-* cris-*-* } } } */
+/* { dg-additional-options "--param max-completely-peeled-insns=300" { target { arm*-*-* cris-*-* m68k*-*-* } } } */
 
 #define TYPE unsigned int
 

gcc/testsuite/gcc.dg/tree-ssa/pr83403-2.c

 /* { dg-do compile } */
 /* { dg-options "-O3 -funroll-loops -fdump-tree-lim2-details" } */
 /* { dg-additional-options "--param max-completely-peeled-insns=200" { target { s390*-*-* } } } */
-/* { dg-additional-options "--param max-completely-peeled-insns=300" { target { arm*-*-* cris-*-* } } } */
+/* { dg-additional-options "--param max-completely-peeled-insns=300" { target { arm*-*-* cris-*-* m68k*-*-* } } } */
 
 #define TYPE int