vf6xx: initial memorymap and clock control module

Add initial memorymap for Vybrid VF6xx module. Also add the clock
control module which allows to control system clocks and enable
clocks of individual pheripherials.

lib/vf6xx/Makefile

@@ -34,6 +34,7 @@ CFLAGS		= -Os -g \
 		  -mcpu=cortex-m4 -mthumb $(FP_FLAGS) -Wstrict-prototypes \
 		  -ffunction-sections -fdata-sections -MD -DVF6XX
 ARFLAGS		= rcs
+OBJS		= ccm.o
 
 VPATH += ../cm3