aarch64: disable test on ilp32 [PR94697]

branch-protection=pac-ret is not supported on ilp32 now and
the test requires it via branch-protection=standard.

committed as obvious.

gcc/testsuite/ChangeLog:

	PR target/94697
	* gcc.target/aarch64/pr94697.c: Require lp64.

gcc/testsuite/ChangeLog

+2020-04-27  Szabolcs Nagy  <szabolcs.nagy@arm.com>
+
+	PR target/94697
+	* gcc.target/aarch64/pr94697.c: Require lp64.
+
 2020-04-27  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c/94755

gcc/testsuite/gcc.target/aarch64/pr94697.c

 /* { dg-do compile } */
+/* { dg-require-effective-target lp64 } */
 /* { dg-options "-O2 -mbranch-protection=standard" } */
 /* { dg-final { check-function-bodies "**" "" } } */