selftests/bpf: Skip ENOTSUPP in ASSERT_GE

There are still some "ENOTSUPP" (-524) errors left when running BPF
selftests on a Loongarch platform since ASSERT_GE() are used there to
check the return values, not ASSERT_OK():

'''
 test_bpf_cookie:PASS:skel_open 0 nsec
 #17/1    bpf_cookie/kprobe:OK
 #17/2    bpf_cookie/multi_kprobe_link_api:OK
 #17/3    bpf_cookie/multi_kprobe_attach_api:OK
 #17/4    bpf_cookie/uprobe:OK
 #17/5    bpf_cookie/multi_uprobe_attach_api:OK
 #17/6    bpf_cookie/tracepoint:OK
 #17/7    bpf_cookie/perf_event:OK
 tracing_subtest:FAIL:fentry.link_create unexpected fentry.link_create: \
						actual -524 < expected 0
 #17/8    bpf_cookie/trampoline:FAIL
 lsm_subtest:FAIL:lsm.link_create unexpected lsm.link_create: \
						actual -524 < expected 0
 #17/9    bpf_cookie/lsm:FAIL
 #17/10   bpf_cookie/tp_btf:OK
 #17/11   bpf_cookie/raw_tp:OK
 #17      bpf_cookie:FAIL
 ... ...
 test_module_fentry_shadow:PASS:load_vmlinux_btf 0 nsec
 test_module_fentry_shadow:PASS:get_bpf_testmod_btf_fd 0 nsec
 test_module_fentry_shadow:PASS:btf_get_from_fd 0 nsec
 test_module_fentry_shadow:PASS:btf_find_by_name 0 nsec
 test_module_fentry_shadow:PASS:btf_find_by_name 0 nsec
 test_module_fentry_shadow:PASS:bpf_prog_load 0 nsec
 test_module_fentry_shadow:FAIL:bpf_link_create unexpected \
				bpf_link_create: actual -524 < expected 0
 #168     module_fentry_shadow:FAIL
'''

Just like in ASSERT_OK(), this patch uses test_progs_get_error() helper
to skip ENOTSUPP (524) and ENOTSUP (95) in ASSERT_GT() too.

With this change, the new output of these selftests look like:

'''
 #17/1    bpf_cookie/kprobe:OK
 #17/2    bpf_cookie/multi_kprobe_link_api:OK
 #17/3    bpf_cookie/multi_kprobe_attach_api:OK
 #17/4    bpf_cookie/uprobe:OK
 #17/5    bpf_cookie/multi_uprobe_attach_api:OK
 #17/6    bpf_cookie/tracepoint:OK
 #17/7    bpf_cookie/perf_event:OK
 #17/8    bpf_cookie/trampoline:SKIP
 #17/9    bpf_cookie/lsm:SKIP
 #17/10   bpf_cookie/tp_btf:SKIP
 #17/11   bpf_cookie/raw_tp:SKIP
 #17      bpf_cookie:OK (SKIP: 4/11)
 ... ...
 #168     module_fentry_shadow:SKIP
'''

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>

tools/testing/selftests/bpf/test_progs.h

@@ -311,9 +311,10 @@ static inline int test_progs_get_error(int error)
 	typeof(actual) ___act = (actual);				\
 	typeof(expected) ___exp = (expected);				\
 	bool ___ok = ___act >= ___exp;					\
-	CHECK(!___ok, (name),						\
-	      "unexpected %s: actual %lld < expected %lld\n",		\
-	      (name), (long long)(___act), (long long)(___exp));	\
+	if (test_progs_get_error(___act))				\
+		CHECK(!___ok, (name),					\
+		      "unexpected %s: actual %lld < expected %lld\n",	\
+		      (name), (long long)(___act), (long long)(___exp));\
 	___ok;								\
 })