Staging: rtl8188eu: core: rtw_pwrctrl.c: Fix a comparision warning.

Move the constant to the right side of comparision.
Issue found by checkpatch.pl semantic patch results for rtw_ap.c

WARNING:Comparision should place the constant on the right side of the
test.
Signed-off-by: Sanjana Sanikommu <sanjana99reddy99@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_pwrctrl.c

@@ -374,7 +374,7 @@ void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_a
 	}
 
 	if (pwrpriv->pwr_mode == ps_mode) {
-		if (PS_MODE_ACTIVE == ps_mode)
+		if (ps_mode == PS_MODE_ACTIVE)
 			return;
 
 		if ((pwrpriv->smart_ps == smart_ps) &&