add sample for sparc ipx

target/sparc/kernel/sun-ipx

@@ -0,0 +1,8 @@
+CONFIG_SPARC=y
+CONFIG_SPARC32=y
+CONFIG_SBUS=y
+CONFIG_SBUSCHAR=y
+CONFIG_SUN_AUXIO=y
+CONFIG_SUN_IO=y
+CONFIG_PCIC_PCI=y
+CONFIG_PROM_CONSOLE=y

target/sparc/systems/sun-ipx

@@ -0,0 +1,11 @@
+config ADK_TARGET_SYSTEM_SUN_IPX
+	bool "Sun Sparcstation IPX"
+	select ADK_TARGET_CPU_SPARC_V8
+	select ADK_TARGET_WITH_NET
+	select ADK_TARGET_WITH_NETDEVICE
+	select ADK_TARGET_WITH_BLOCK
+	select ADK_TARGET_KERNEL_ZIMAGE
+	select ADK_TARGET_KERNEL_WITH_COMPRESSION
+	help
+	  Support for Sun Sparcstation IPX.
+