dfu: modify an argument type for an address

The range of an addressable pointer can go beyond 'integer'.
So change the argument type to a void pointer.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/include/dfu.h b/include/dfu.h
index a4cd86c..d3d7e07 100644
--- a/include/dfu.h
+++ b/include/dfu.h
@@ -507,10 +507,10 @@
  * Return:		0 - on success, error code - otherwise
  */
 #if CONFIG_IS_ENABLED(DFU_WRITE_ALT)
-int dfu_write_by_name(char *dfu_entity_name, unsigned int addr,
+int dfu_write_by_name(char *dfu_entity_name, void *addr,
 		      unsigned int len, char *interface, char *devstring);
 #else
-static inline int dfu_write_by_name(char *dfu_entity_name, unsigned int addr,
+static inline int dfu_write_by_name(char *dfu_entity_name, void *addr,
 				    unsigned int len, char *interface,
 				    char *devstring)
 {