[IA64] xenctx shows more registers for ia64

[IA64] xenctx shows more registers for ia64

This patch adds more user registers to show them to xenctx for ia64.
Tested domU/domVTi on ia64.

Sample is the below.
# ./xenctx 1 0
 iip:               e000000000000810
 ipsr:              00001012087a6010   b0:                a000000100068a70
 b6:                a00000010014ff60   b7:                e000000000000800
 cr_ifs:            800000000000050a   ar_unat:           0000000000000000
 ar_pfs:            8000000000000209   ar_rsc:            0000000000000008
 ar_rnat:           0000000000000000   ar_bspstore:       a000000100c19030
 ar_fpsr:           0009804c8a70433f   event_callback_ip: a000000100067a20
 pr:                000000000005aa85   loadrs:            0000000000780000
 iva:               a000000100008000   dcr:               0000000000007e04

 r1:  a0000001010369a0
 r2:  0000000000001000   r3:  8000000000000209
 r4:  0000000000000000   r5:  0000000000000000
 r6:  0000000000000000   r7:  0000000000000000
 r8:  a000000100068a70   r9:  0000000000000100
 r10: 0000000000000000   r11: 0000000000050ac5
 sp:  a000000100c1fd80   tp:  a000000100c18000
 r14: 0000000000000001   r15: 0000000000000000
 r16: fffffffffff04c18   r17: a000000100c1fdb0
 r18: a000000100c1fdb1   r19: a000000100c1fe90
 r20: a000000100c1fe10   r21: 0000000000000000
 r22: 0000000000000001   r23: 0000000000000000
 r24: a000000100e5a448   r25: a000000100c18f10
 r26: ffffffffffff0030   r27: 0000000000000000
 r28: 000000000000001d   r29: 0000000000000000
 r30: 0000000000000000   r31: 0000000000000000

 itr: P rid    va               pa            ps      ed pl ar a d ma    key
 [0]  1 000005 a000000100000000 0000004000000 1a  64M 1  2  3  1 1 0 WB  000000
 [1]  1 000007 e000000000000000 0000000000000 18  16M 1  2  3  1 1 0 WB  000000
 [2]  0 000000 0000000000000000 0000000000000 00      0  0  0  0 0 0 WB  000000
 [3]  0 000000 0000000000000000 0000000000000 00      0  0  0  0 0 0 WB  000000
 [4]  0 000000 0000000000000000 0000000000000 00      0  0  0  0 0 0 WB  000000
 [5]  0 000000 0000000000000000 0000000000000 00      0  0  0  0 0 0 WB  000000
 [6]  0 000000 0000000000000000 0000000000000 00      0  0  0  0 0 0 WB  000000
 [7]  0 000000 0000000000000000 0000000000000 00      0  0  0  0 0 0 WB  000000

 dtr: P rid    va               pa            ps      ed pl ar a d ma    key
 [0]  1 000005 a000000100000000 0000004000000 1a  64M 1  2  3  1 1 0 WB  000000
 [1]  1 000007 ffffffffffff0000 0000000010000 10  64K 1  2  3  1 1 0 WB  000000
 [2]  1 000007 e000000000000000 0000000000000 18  16M 1  2  3  1 1 0 WB  000000
 [3]  0 000000 0000000000000000 0000000000000 00      0  0  0  0 0 0 WB  000000
 [4]  0 000000 0000000000000000 0000000000000 00      0  0  0  0 0 0 WB  000000
 [5]  0 000000 0000000000000000 0000000000000 00      0  0  0  0 0 0 WB  000000
 [6]  0 000000 0000000000000000 0000000000000 00      0  0  0  0 0 0 WB  000000
 [7]  0 000000 0000000000000000 0000000000000 00      0  0  0  0 0 0 WB  000000

Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com>
Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>