Drivers: hv: vmbus: fix the building warning with hyperv-keyboard

With the recent change af3ff643ea91ba64dd8d0b1cbed54d44512f96cd
(Drivers: hv: vmbus: Use uuid_le type consistently), we always get this
warning:

  CC [M]  drivers/input/serio/hyperv-keyboard.o
drivers/input/serio/hyperv-keyboard.c:427:2: warning: missing braces around
	initializer [-Wmissing-braces]
  { HV_KBD_GUID, },
  ^
drivers/input/serio/hyperv-keyboard.c:427:2: warning: (near initialization
	for .id_table[0].guid.b.) [-Wmissing-braces]

The patch fixes the warning.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 179ff33..753dbad 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -1079,6 +1079,14 @@
 			0x8b, 0xa1, 0xa1, 0xf3, 0xf9, 0x5a)
 
 /*
+ * Keyboard GUID
+ * {f912ad6d-2b17-48ea-bd65-f927a61c7684}
+ */
+#define HV_KBD_GUID \
+	.guid = UUID_LE(0xf912ad6d, 0x2b17, 0x48ea, 0xbd, 0x65, \
+			0xf9, 0x27, 0xa6, 0x1c, 0x76, 0x84)
+
+/*
  * VSS (Backup/Restore) GUID
  */
 #define HV_VSS_GUID \