selftests/mincore: fix skip condition for check_huge_pages test

The check_huge_pages test was failing instead of skipping on qemu-armv7
because the skip condition wasn't handled properly. Add an additional
check to fix it.

Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Closes: https://lore.kernel.org/all/CA+G9fYuoB8Ug8PcTU-YGmemL7_eeEksXFihvxWF6OikD7sK7pA@mail.gmail.com
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

tools/testing/selftests/mincore/mincore_selftest.c

@@ -150,8 +150,8 @@ TEST(check_huge_pages)
 		MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
 		-1, 0);
 	if (addr == MAP_FAILED) {
-		if (errno == ENOMEM)
-			SKIP(return, "No huge pages available.");
+		if (errno == ENOMEM || errno == EINVAL)
+			SKIP(return, "No huge pages available or CONFIG_HUGETLB_PAGE disabled.");
 		else
 			TH_LOG("mmap error: %s", strerror(errno));
 	}