test-cpu-set-util: fix allocation size check on i386
We get just 28 bytes not 32 as on 64-bit architectures (__cpu_set_t is 4 bytes,
we need at least 26, so 28 satisfies the constraints).
(cherry picked from commit 64412970ac0d4b6f5c4bbd8816edc9bff9eab2de)
Related: #1734787
patch_name: 0295-test-cpu-set-util-fix-allocation-size-check-on-i386.patch
present_in_specfile: true
location_in_specfile: 295
squash_commits: true