include/device_tree.h: Fix function name fdt_node_name

Rename fdt_node_name to the actual function name and also rename the
references.

Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: I527146df26264a0c3af1ad01c21644d751b80236
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83084
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>

src/lib/fit.c

@@ -178,7 +178,7 @@ static int fdt_find_compat(const void *blob, uint32_t start_offset,
 	int offset = start_offset;
 	int size;
 
-	size = fdt_node_name(blob, offset, NULL);
+	size = fdt_next_node_name(blob, offset, NULL);
 	if (!size)
 		return -1;
 	offset += size;