testsuite: Fix up vect-early-break_100-pr113287.c testcase [PR113287]

When the testcase was being adjusted for unsigned long -> unsigned long long,
two spots using long weren't changed to long long, so the testcase still warns
about UB in shifts.

2024-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/113287
	* gcc.dg/vect/vect-early-break_100-pr113287.c: Use long long instead
	of long.