Updated to NUD probability from 10% to 1%.

Change will speards NUD process to more wide in big network.

Change-Id: I80606116a11b34ccbf01f07bb48a65a98641636c

Author: Juha Heiskanen

source/6LoWPAN/ws/ws_common_defines.h

@@ -189,7 +189,7 @@ typedef struct ws_bs_ie {
 
 #define WS_PROBE_INIT_BASE_SECONDS 8
 
-#define WS_NUD_RAND_PROBABILITY 10
+#define WS_NUD_RAND_PROBABILITY 1
 
 #define WS_NUD_RANDOM_SAMPLE_LENGTH WS_NEIGHBOR_NUD_TIMEOUT / 2