arcturus-uc5328: add basic infra

target/m68k/kernel/arcturus-uc5328

@@ -0,0 +1,6 @@
+CONFIG_M68K=y
+# CONFIG_MMU is not set
+CONFIG_COLDFIRE=y
+CONFIG_M532x=y
+CONFIG_M53xx=y
+CONFIG_COLDFIRE_TIMERS=y

target/m68k/systems/arcturus-uc5328

@@ -0,0 +1,9 @@
+config ADK_TARGET_SYSTEM_ARCTURUS_UC5328
+	bool "Arcturus uC5328"
+	select ADK_TARGET_CPU_CF_5328
+	select ADK_TARGET_WITH_NETDEVICE
+	select ADK_TARGET_PACKAGE_TXZ
+	help
+	  Arcturus uC5328
+	  https://www.arcturusnetworks.com/products
+