erste Schritte
Update Makefile.include

little update towards compiling for am335x
- board specific header and source files included
	modified:   boards/beaglebone/Makefile
	modified:   boards/beaglebone/Makefile.include
	modified:   boards/beaglebone/board.c
	new file:   boards/beaglebone/boardb.c
	new file:   boards/beaglebone/ctlregcontext.c
	new file:   boards/beaglebone/dmtimer.c
	new file:   boards/beaglebone/edma.c
	new file:   boards/beaglebone/gpio.c
	new file:   boards/beaglebone/include/beaglebone.h
	modified:   boards/beaglebone/include/board.h
	new file:   boards/beaglebone/include/clock.h
	new file:   boards/beaglebone/include/device.h
	new file:   boards/beaglebone/include/dmtimer.h
	new file:   boards/beaglebone/include/edma.h
	new file:   boards/beaglebone/include/edma_event.h
	new file:   boards/beaglebone/include/gpio_v2.h
	new file:   boards/beaglebone/include/hw_dmtimer_1ms.h
	new file:   boards/beaglebone/include/hw_rtc.h
	new file:   boards/beaglebone/include/hw_uart_irda_cir.h
	new file:   boards/beaglebone/include/hw_watchdog.h
	new file:   boards/beaglebone/include/interrupt.h
	modified:   boards/beaglebone/include/periph_conf.h
	new file:   boards/beaglebone/include/pin_mux.h
	new file:   boards/beaglebone/include/rtc.h
	new file:   boards/beaglebone/include/systick.h
	new file:   boards/beaglebone/include/uartStdio.h
	new file:   boards/beaglebone/include/uart_irda_cir.h
	new file:   boards/beaglebone/include/watchdog.h
	new file:   boards/beaglebone/rtc.c
	new file:   boards/beaglebone/timertick.c
	new file:   boards/beaglebone/uart.c
	new file:   boards/beaglebone/uartConsole.c
	new file:   boards/beaglebone/watchdog.c