Add 'dg-do run' to 'libgomp.fortran/target-enter-data-1.f90'

Fix-up for commit 689418b9 "libgomp – fix
handling of 'target enter data'".

	libgomp/
	* testsuite/libgomp.fortran/target-enter-data-1.f90: Add 'dg-do
	run'.

libgomp/ChangeLog

+2020-04-10  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* testsuite/libgomp.fortran/target-enter-data-1.f90: Add 'dg-do
+	run'.
+
 2020-04-08  Tobias Burnus  <tobias@codesourcery.com>
 
 	PR middle-end/94120

libgomp/testsuite/libgomp.fortran/target-enter-data-1.f90

+! { dg-do run }
+
 program main
   implicit none
   integer, allocatable, dimension(:) :: AA, BB, CC, DD