wl12xx/wl18xx: use a dynamic PS timeout of 1.5sec

It seems some parties have bad user experience when smaller values
are used. This should have little implications for power consumption,
since traffic is bursty in nature.
Signed-off-by: Arik Nemtsov <arik@wizery.com>

drivers/net/wireless/ti/wl12xx/main.c

@@ -242,7 +242,7 @@ static struct wlcore_conf wl12xx_conf = {
 		.psm_entry_retries           = 8,
 		.psm_exit_retries            = 16,
 		.psm_entry_nullfunc_retries  = 3,
-		.dynamic_ps_timeout          = 200,
+		.dynamic_ps_timeout          = 1500,
 		.forced_ps                   = false,
 		.keep_alive_interval         = 55000,
 		.max_listen_interval         = 20,

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

@@ -369,7 +369,7 @@ static struct wlcore_conf wl18xx_conf = {
 		.psm_entry_retries           = 8,
 		.psm_exit_retries            = 16,
 		.psm_entry_nullfunc_retries  = 3,
-		.dynamic_ps_timeout          = 200,
+		.dynamic_ps_timeout          = 1500,
 		.forced_ps                   = false,
 		.keep_alive_interval         = 55000,
 		.max_listen_interval         = 20,