hp_accel: Add support for HP ZBook 15

HP ZBook 15 laptop needs a non-standard mapping (x_inverted).

BugLink: http://bugzilla.opensuse.org/show_bug.cgi?id=905329Signed-off-by: NDominique Leuenberger <dimstar@opensuse.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NDarren Hart <dvhart@linux.intel.com>

drivers/platform/x86/hp_accel.c

@@ -246,6 +246,7 @@ static const struct dmi_system_id lis3lv02d_dmi_ids[] = {
 	AXIS_DMI_MATCH("HPB64xx", "HP ProBook 64", xy_swap),
 	AXIS_DMI_MATCH("HPB64xx", "HP EliteBook 84", xy_swap),
 	AXIS_DMI_MATCH("HPB65xx", "HP ProBook 65", x_inverted),
+	AXIS_DMI_MATCH("HPZBook15", "HP ZBook 15", x_inverted),
 	{ NULL, }
 /* Laptop models without axis info (yet):
  * "NC6910" "HP Compaq 6910"