iopsys-econet: extend dmesg buffer

extend from 16kB to 128kB. 128 is brcm standard.

Signed-off-by: Bartlomiej Grzeskowiak <bartlomiej.grzeskowiak@iopsys.eu>

iopsys-econet/en7562/config-5.4

@@ -407,7 +407,7 @@ CONFIG_LOCALVERSION_AUTO=y
 CONFIG_LOCKD=m
 CONFIG_LOCK_DEBUGGING_SUPPORT=y
 CONFIG_LOCK_SPIN_ON_OWNER=y
-CONFIG_LOG_BUF_SHIFT=14
+CONFIG_LOG_BUF_SHIFT=17
 CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
 CONFIG_MANDATORY_FILE_LOCKING=y