pwm: lpss: Actually use a module namespace by defining the namespace earlier

DEFAULT_SYMBOL_NAMESPACE must be already defined when <linux/export.h>
is included. So move the define above the include block.

With the DEFAULT_SYMBOL_NAMESPACE being defined too late, the exported
symbols end up in the default namespace. So the respective modules can
use the symbols defined in pwm-lpss.c just fine and up to now just
imported the PWM_LPSS namespace without any gain.

Signed-off-by: Uwe Kleine-König <[e-mail]>
Signed-off-by: Andy Shevchenko <[e-mail]>

drivers/pwm/pwm-lpss.c

···
  * Author: Alan Cox <[e-mail]>
  */
 
+#define DEFAULT_SYMBOL_NAMESPACE "PWM_LPSS"
+
 #include <linux/bits.h>
 #include <linux/delay.h>
 #include <linux/io.h>
···
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
 #include <linux/time.h>
-
-#define DEFAULT_SYMBOL_NAMESPACE "PWM_LPSS"
 
 #include "pwm-lpss.h"