Exterminate old-style function definitions

boards/msb-430-common/board_init.c

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

boards/native/board_init.c

boards/native/drivers/native-uart0.c

boards/wsn430-common/board_init.c

core/sched.c

core/thread.c

cpu/msp430-common/cpu.c

cpu/msp430-common/hwtimer_cpu.c

cpu/msp430-common/irq.c

cpu/native/hwtimer_cpu.c

cpu/native/irq_cpu.c

cpu/native/lpm_cpu.c

cpu/native/native_cpu.c

cpu/native/net/interface.c

cpu/native/startup.c

cpu/native/syscalls.c

drivers/cc110x/cc1100_phy.c

drivers/cc110x_ng/cc110x.c

sys/net/network_layer/sixlowpan/lowpan.c