lib: utils: Make fdt_get_node_addr_size() public function

The fdt_get_node_addr_size() will be useful in FDT based simple
driver frameworks so we make it a public function.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

include/sbi_utils/fdt/fdt_helper.h

@@ -34,6 +34,9 @@ const struct fdt_match *fdt_match_node(void *fdt, int nodeoff,
 int fdt_find_match(void *fdt, const struct fdt_match *match_table,
 		   const struct fdt_match **out_match);
 
+int fdt_get_node_addr_size(void *fdt, int node, unsigned long *addr,
+			   unsigned long *size);
+
 int fdt_parse_uart8250_node(void *fdt, int nodeoffset,
 			    struct platform_uart_data *uart);