UBUNTU: SAUCE: (no-up) x86: reboot: Make Dell Latitude E6520 use reboot=pci

The Dell Latitude E6520 doesn't reboot unless reboot=pci is set.

BugLink: http://bugs.launchpad.net/bugs/833705
Cc: <stable@kernel.org>
Signed-off-by: Leann Ogasawara <leann.ogasawara@canonical.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>

arch/x86/kernel/reboot.c

@@ -415,7 +415,14 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-Z540N"),
 		},
 	},
-
+	{	/* Handle problems with rebooting on the Latitude E6520. */
+		.callback = set_pci_reboot,
+		.ident = "Dell Latitude E6520",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6520"),
+		},
+	},
 	{ }
 };