wl18xx: change default tcp_checksum to false

as tcp check sum is going to be removed from firmware, and as
there is a problem with getting dns in security when checksum is
enabled, it was decided to disable it by default.
for none security modes it can be enabled by module paramenter.
Signed-off-by: NAssaf Azulay <assaf@ti.com>
Signed-off-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NLuciano Coelho <coelho@ti.com>

drivers/net/wireless/ti/wl18xx/main.c

@@ -47,7 +47,7 @@ static char *board_type_param = "hdk";
 static bool dc2dc_param = false;
 static int n_antennas_2_param = 1;
 static int n_antennas_5_param = 1;
-static bool checksum_param = true;
+static bool checksum_param = false;
 static bool enable_11a_param = true;
 static int low_band_component = -1;
 static int low_band_component_type = -1;
@@ -1252,7 +1252,7 @@ module_param_named(n_antennas_5, n_antennas_5_param, uint, S_IRUSR);
 MODULE_PARM_DESC(n_antennas_5, "Number of installed 5GHz antennas: 1 (default) or 2");
 
 module_param_named(checksum, checksum_param, bool, S_IRUSR);
-MODULE_PARM_DESC(checksum, "Enable TCP checksum: boolean (defaults to true)");
+MODULE_PARM_DESC(checksum, "Enable TCP checksum: boolean (defaults to false)");
 
 module_param_named(enable_11a, enable_11a_param, bool, S_IRUSR);
 MODULE_PARM_DESC(enable_11a, "Enable 11a (5GHz): boolean (defaults to true)");