Fix several sparse warnings like:
lib/test_bpf.c:1824:25: sparse: constant 4294967295 is so big it is long
lib/test_bpf.c:1878:25: sparse: constant 0x0000ffffffff0000 is so big it is long

Fixes: cffc642d ("test_bpf: add 173 new testcases for eBPF")
Reported-by: NFengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NMichael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: NAlexei Starovoitov <ast@plumgrid.com>
Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>