platform/x86: hp-wmi: Correct code style related issues

Update hp-wmi driver to address all code style issues reported
by checkpatch.pl script.

All changes were validated on a HP ZBook Workstation,
HP EliteBook x360, and HP EliteBook 850 G8 notebooks.
Signed-off-by: Jorge Lopez <jorge.lopez2@hp.com>
Link: https://lore.kernel.org/r/20220404203626.4311-2-jorge.lopez2@hp.comSigned-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/hp-wmi.c

@@ -605,6 +605,7 @@ static int hp_wmi_rfkill2_refresh(void)
 	for (i = 0; i < rfkill2_count; i++) {
 		int num = rfkill2[i].num;
 		struct bios_rfkill2_device_state *devstate;
+
 		devstate = &state.device[num];
 
 		if (num >= state.count ||
@@ -625,6 +626,7 @@ static ssize_t display_show(struct device *dev, struct device_attribute *attr,
 			    char *buf)
 {
 	int value = hp_wmi_read_int(HPWMI_DISPLAY_QUERY);
+
 	if (value < 0)
 		return value;
 	return sprintf(buf, "%d\n", value);
@@ -634,6 +636,7 @@ static ssize_t hddtemp_show(struct device *dev, struct device_attribute *attr,
 			    char *buf)
 {
 	int value = hp_wmi_read_int(HPWMI_HDDTEMP_QUERY);
+
 	if (value < 0)
 		return value;
 	return sprintf(buf, "%d\n", value);
@@ -643,6 +646,7 @@ static ssize_t als_show(struct device *dev, struct device_attribute *attr,
 			char *buf)
 {
 	int value = hp_wmi_read_int(HPWMI_ALS_QUERY);
+
 	if (value < 0)
 		return value;
 	return sprintf(buf, "%d\n", value);
@@ -652,6 +656,7 @@ static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
 			 char *buf)
 {
 	int value = hp_wmi_get_dock_state();
+
 	if (value < 0)
 		return value;
 	return sprintf(buf, "%d\n", value);
@@ -661,6 +666,7 @@ static ssize_t tablet_show(struct device *dev, struct device_attribute *attr,
 			   char *buf)
 {
 	int value = hp_wmi_get_tablet_mode();
+
 	if (value < 0)
 		return value;
 	return sprintf(buf, "%d\n", value);
@@ -671,6 +677,7 @@ static ssize_t postcode_show(struct device *dev, struct device_attribute *attr,
 {
 	/* Get the POST error code of previous boot failure. */
 	int value = hp_wmi_read_int(HPWMI_POSTCODEERROR_QUERY);
+
 	if (value < 0)
 		return value;
 	return sprintf(buf, "0x%x\n", value);
@@ -1013,6 +1020,7 @@ static int __init hp_wmi_rfkill2_setup(struct platform_device *device)
 		struct rfkill *rfkill;
 		enum rfkill_type type;
 		char *name;
+
 		switch (state.device[i].radio_type) {
 		case HPWMI_WIFI:
 			type = RFKILL_TYPE_WLAN;