OpenMP: Fix new lvalue-parsing map/to/from tests for 32-bit targets

This patch fixes several tests introduced by the commit
r14-7033-g1413af02d62182 for 32-bit targets.

2024-01-10  Julian Brown  <julian@codesourcery.com>

gcc/testsuite/
	* g++.dg/gomp/array-section-1.C: Fix scan output for 32-bit target.
	* g++.dg/gomp/array-section-2.C: Likewise.
	* g++.dg/gomp/bad-array-section-4.C: Adjust error output for 32-bit
	target.