eal/windows: fix error code for not supported API

[ upstream commit 7e71c4d ]

UT memory_autotest on Windows has 2 failed cases on EAL APIs
eal_memalloc_get_seg_fd and eal_memalloc_get_seg_fd_offset. These 2
APIs are not supported on Windows yet. Should return ENOTSUP such that
in test_memory.c these 2 ENOTSUP cases will not be marked as failures,
same as other ENOTSUP cases.

Fixes: 2a5d547 ("eal/windows: implement basic memory management")

Signed-off-by: Jie Zhou <jizh@linux.microsoft.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>

lib/librte_eal/windows/eal_memalloc.c

@@ -18,7 +18,7 @@ eal_memalloc_get_seg_fd(int list_idx, int seg_idx)
 	RTE_SET_USED(list_idx);
 	RTE_SET_USED(seg_idx);
 	EAL_LOG_NOT_IMPLEMENTED();
-	return -1;
+	return -ENOTSUP;
 }
 
 int
@@ -29,7 +29,7 @@ eal_memalloc_get_seg_fd_offset(int list_idx, int seg_idx, size_t *offset)
 	RTE_SET_USED(seg_idx);
 	RTE_SET_USED(offset);
 	EAL_LOG_NOT_IMPLEMENTED();
-	return -1;
+	return -ENOTSUP;
 }
 
 static int
@@ -429,7 +429,7 @@ eal_memalloc_sync_with_primary(void)
 {
 	/* No multi-process support. */
 	EAL_LOG_NOT_IMPLEMENTED();
-	return -1;
+	return -ENOTSUP;
 }
 
 int