add qemu support for basic testing

target/config/Config.in

@@ -230,6 +230,9 @@ config ADK_CPU_I686
 config ADK_CPU_GEODE
 	boolean
 
+config ADK_CPU_PPC
+	boolean
+
 config ADK_CPU_PENTIUM_M
 	boolean
 
@@ -257,6 +260,7 @@ config ADK_TARGET_CPU_ARCH
 	default "arm" if ADK_LINUX_ARM && ADK_little
 	default "armeb" if ADK_LINUX_ARM && ADK_big
 	default "sparc" if ADK_LINUX_SPARC
+	default "powerpc" if ADK_CPU_PPC
 
 config ADK_TARGET_ABI_CFLAGS
 	string

target/ppc/sys-available/qemu-ppc

@@ -0,0 +1,13 @@
+config ADK_TARGET_SYSTEM_QEMU_PPC
+	bool "Qemu Emulator"
+	select ADK_ppc
+	select ADK_qemu_ppc
+	select ADK_CPU_PPC
+	select ADK_HARDWARE_QEMU
+	select ADK_TARGET_WITH_VGA
+	select ADK_TARGET_WITH_INPUT
+	select ADK_TARGET_WITH_PCI
+	select ADK_TARGET_WITH_HDD
+	help
+	 Support for Qemu Emulator (PPC).
+