Testsuite: Tweak gcc.dg/20021029-1.c for nios2.

This test needs to be built with -G0 on nios2 to avoid treating the array
as small data.

2021-12-16  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/testsuite/
	* gcc.dg/20021029-1.c: Build with -G0 for nios2.