moved boards into subdirectory

boards/msb-430/Makefile

boards/msb-430/Makefile.include

boards/msb-430/include/board.h

boards/msb-430h/Makefile

boards/msb-430h/Makefile.dep

boards/msb-430h/Makefile.include

boards/msb-430h/driver_cc110x.c

boards/msb-430h/include/board.h

boards/msba2-common/Makefile

boards/msba2-common/Makefile.dep

boards/msba2-common/Makefile.include

boards/msba2-common/board_common_init.c

boards/msba2-common/board_config.c

boards/msba2-common/drivers/Makefile

boards/msba2-common/drivers/include/sht11-board.h

boards/msba2-common/drivers/include/uart0.h

boards/msba2-common/drivers/msba2-cc110x.c

boards/msba2-common/drivers/msba2-ltc4150.c

boards/msba2-common/drivers/msba2-uart0.c

boards/msba2-common/include/msba2_common.h