[openrisc] OR16 ISA

[jimmy87@sunplus.com.tw]

please update
{ "h.lhz",     "r8,N(rB)",   "0x0 NNNN 1000 BBBB"},
{ "h.lhs",     "r9,N(rB)",   "0x0 NNNN 1001 BBBB"},
{ "h.lbz",     "r10,N(rB)",  "0x0 NNNN 1010 BBBB"},
{ "h.lbs",     "r11,N(rB)",  "0x0 NNNN 1011 BBBB"},

{ "h.lhspain", "rA,N",       "0x5 0x6  AAAA NNNN"},
{ "h.lbspain", "rA,N",       "0x5 0x7  AAAA NNNN"},

s: sign extension

Best regards, Jimmy