blackfin: mach-bf609: add machine files

Add machine files for bf60x including head files, Kconfig/Makefile and board
file.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
diff --git a/arch/blackfin/mach-bf609/Makefile b/arch/blackfin/mach-bf609/Makefile
new file mode 100644
index 0000000..2a27f81
--- /dev/null
+++ b/arch/blackfin/mach-bf609/Makefile
@@ -0,0 +1,6 @@
+#
+# arch/blackfin/mach-bf609/Makefile
+#
+
+obj-y := dma.o clock.o
+obj-$(CONFIG_PM) += pm.o hibernate.o