[PATCH] intel-hid: expand DMI quirk to support HP Spectre X2 (2015)

[Nickolai Kozachenko <daemongloom@xxxxxxxxx>]

HEBC method reports capabilities of 5 button array but HP Spectre X2 
(2015) does not have this control method (the same was for Wacom 
MobileStudio Pro). Previous DMI quirk  by Alex Hung was expanded to also 
enable 5 button array for this system.

Signed-off-by: Nickolai Kozachenko <daemongloom@xxxxxxxxx>
---
Tested on my own device.  Thanks to Alex Hung for creating quirk for 
Wacom MobileStudio devices that can be reused for HP Spectre X2 (2015).

--- drivers/platform/x86/intel-hid.c.orig    2020-05-29 
13:13:43.768032597 +0500
+++ drivers/platform/x86/intel-hid.c    2020-05-29 13:19:30.089899469 +0500
@@ -79,6 +79,13 @@ static const struct dmi_system_id button
             DMI_MATCH(DMI_PRODUCT_NAME, "Wacom MobileStudio Pro 16"),
         },
     },
+    {
+        .ident = "HP Spectre x2 (2015)",
+        .matches = {
+            DMI_MATCH(DMI_SYS_VENDOR, "HP"),
+            DMI_MATCH(DMI_PRODUCT_NAME, "HP Spectre x2 Detachable"),
+        },
+    },
     { }
 };