dfu: samsung: move call to set_dfu_alt_info() to dfu common code

This common call can be used for setting proper entities based
on dfu command arguments.
The config: CONFIG_SET_DFU_ALT_INFO, was used only for few configs,
and now it is common.

The board file should implement:
- set_dfu_alt_info() function

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
[Test HW: Odroid U3 (Exynos 4412)]
diff --git a/include/samsung/misc.h b/include/samsung/misc.h
index 607e8d4..0f957dc 100644
--- a/include/samsung/misc.h
+++ b/include/samsung/misc.h
@@ -29,9 +29,8 @@
 #endif
 
 #ifdef CONFIG_SET_DFU_ALT_INFO
-char *get_dfu_alt_system(void);
-char *get_dfu_alt_boot(void);
-void set_dfu_alt_info(void);
+char *get_dfu_alt_system(char *interface, char *devstr);
+char *get_dfu_alt_boot(char *interface, char *devstr);
 #endif
 #ifdef CONFIG_BOARD_TYPES
 void set_board_type(void);