powerpc: trim the crap from syscalls.h

#include <linux/compiler.h>

#include <linux/linkage.h>

#include <linux/types.h>

#include <asm/signal.h>

struct pt_regs;

struct rtas_args;

asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,

asmlinkage unsigned long sys_mmap2(unsigned long addr, size_t len,

		unsigned long prot, unsigned long flags,

		unsigned long fd, unsigned long pgoff);

asmlinkage long sys_pipe(int __user *fildes);

asmlinkage long sys_pipe2(int __user *fildes, int flags);

asmlinkage long ppc64_personality(unsigned long personality);

asmlinkage int ppc_rtas(struct rtas_args __user *uargs);

asmlinkage time_t sys64_time(time_t __user * tloc);

#endif /* __KERNEL__ */

#endif /* __ASM_POWERPC_SYSCALLS_H */