ARM: trats: dfu: Enable default Poll Timeout for Trats board

Provide default Poll Timeout value for Trats board.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
diff --git a/include/configs/trats.h b/include/configs/trats.h
index 0877142..6cd15c2 100644
--- a/include/configs/trats.h
+++ b/include/configs/trats.h
@@ -99,6 +99,7 @@
 #define CONFIG_THOR_FUNCTION
 
 #define CONFIG_SYS_DFU_DATA_BUF_SIZE SZ_32M
+#define DFU_DEFAULT_POLL_TIMEOUT 300
 #define CONFIG_DFU_FUNCTION
 #define CONFIG_DFU_MMC