Committed by Kei Sakamoto.
* traps-linux.c (m32r_trap): Add entries of the following dummy system
calls: __NR_mmap2, __NR_lchown32, __NR_getuid32, __NR_getgid32,
__NR_geteuid32, __NR_getegid32, __NR_getgroups32, __NR_fchown32,
__NR_setfsuid32, __NR_setfsgid32, __NR_getresuid32,
__NR_getresgid32 and __NR_chown32.
* syscall.h: Add new definitions of system call number.