boards/x86: Enable Intel VT-D for up_squared

Mainly for testing Intel VT-D for now.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
diff --git a/boards/x86/up_squared/up_squared.dts b/boards/x86/up_squared/up_squared.dts
index de78e1b..b13cef3 100644
--- a/boards/x86/up_squared/up_squared.dts
+++ b/boards/x86/up_squared/up_squared.dts
@@ -25,3 +25,7 @@
 		zephyr,bt-mon-uart = &uart1;
 	};
 };
+
+&vtd {
+	status = "okay";
+};
diff --git a/boards/x86/up_squared/up_squared_defconfig b/boards/x86/up_squared/up_squared_defconfig
index 5e8005a..4b9fd65 100644
--- a/boards/x86/up_squared/up_squared_defconfig
+++ b/boards/x86/up_squared/up_squared_defconfig
@@ -11,3 +11,4 @@
 CONFIG_X2APIC=y
 CONFIG_SMP=y
 CONFIG_MP_NUM_CPUS=2
+CONFIG_INTEL_VTD_ICTL=y