lib: addr_map: Move address_map[] type to the header file

At present address_map[] is static and its type is unknown to external
modules. In preparation to create a command to list its contents, this
patch moves its type definition and declaration to the header file.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/include/addr_map.h b/include/addr_map.h
index 85e737d..55d3a6a 100644
--- a/include/addr_map.h
+++ b/include/addr_map.h
@@ -8,6 +8,14 @@
 
 #include <asm/types.h>
 
+struct addrmap {
+	phys_addr_t paddr;
+	phys_size_t size;
+	unsigned long vaddr;
+};
+
+extern struct addrmap address_map[CONFIG_SYS_NUM_ADDR_MAP];
+
 phys_addr_t addrmap_virt_to_phys(void *vaddr);
 void *addrmap_phys_to_virt(phys_addr_t paddr);
 void addrmap_set_entry(unsigned long vaddr, phys_addr_t paddr,