x86: Limit -mcmodel=large tests to lp64 target

-mcmodel=large is only supported for lp64 targets.  Limit -mcmodel=large
tests of libcall-1.c and pr107057.c to lp64 target.

	* gcc.target/i386/libcall-1.c: Limit to lp64 target.
	* gcc.target/i386/pr107057.c: Likewise.

gcc/testsuite/gcc.target/i386/libcall-1.c

@@ -1,7 +1,7 @@
 /* Make sure that external refences for libcalls are generated even for
    indirect calls.  */
 
-/* { dg-do compile { target int128 } } */
+/* { dg-do compile { target { int128 && lp64 } } } */
 /* { dg-options "-O2 -mcmodel=large" } */
 /* { dg-final { scan-assembler "globl\t__divti3" } } */
 /* { dg-skip-if "PR90698" { *-*-darwin* } } */

gcc/testsuite/gcc.target/i386/pr107057.c

@@ -1,4 +1,4 @@
-/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-do compile { target lp64 } } */
 /* { dg-options "-mavx -mcmodel=large -O3" } */
 
 typedef double v2df __attribute__ ((vector_size (16)));