s390: fix # of args truncate64/ftruncate64 takes
s390: fix # of args truncate64/ftruncate64 takes

* linux/s390/syscallent.h: Change nargs to 3 for truncate64/ftruncate64.

AOSP-YU/platform_external_strace,CyanogenMod/android_external_strace,CyanogenMod/android_external_strace,Yu-AndroidM/android_external_strace,Saruta/strace,xin3liang/platform_external_strace,DirtyUnicorns/android_external_strace,lkundrak/strace,geekboxzone/lollipop_external_strace,Distrotech/strace,Distrotech/strace,geekboxzone/mmallow_external_strace,vrastogi/strace,geofft/strace,lkundrak/strace,geekboxzone/mmallow_external_strace,YUPlayGodDev/platform_external_strace,pombredanne/strace,geekboxzone/lollipop_external_strace,android-ia/platform_external_strace,cuviper/strace,lkundrak/strace,Infinitive-OS/platform_external_strace,AOSP-YU/platform_external_strace,vrastogi/strace,Distrotech/strace,bigzz/strace_android,pombredanne/strace,MonkeyZZZZ/platform_external_strace,bigzz/strace_android,geofft/strace,Saruta/strace,geekboxzone/lollipop_external_strace,DirtyUnicorns/android_external_strace,CyanogenMod/android_external_strace,xin3liang/platform_external_strace,Yu-AndroidM/android_external_strace,Saruta/strace,geofft/strace,bigzz/strace_android,pombredanne/strace,TeamExodus/external_strace,Infinitive-OS/platform_external_strace,kapdop/android_external_strace,MonkeyZZZZ/platform_external_strace,bigzz/strace_android,cuviper/strace,DirtyUnicorns/android_external_strace,android-ia/platform_external_strace,Saruta/strace,xin3liang/platform_external_strace,kapdop/android_external_strace,CyanogenMod/android_external_strace,YUPlayGodDev/platform_external_strace,AOSP-YU/platform_external_strace,bnoordhuis/strace,DirtyUnicorns/android_external_strace,bigzz/strace_android,bnoordhuis/strace,geekboxzone/mmallow_external_strace,CyanogenMod/android_external_strace,DirtyUnicorns/android_external_strace,cuviper/strace,Distrotech/strace,TeamExodus/external_strace,TeamExodus/external_strace,android-ia/platform_external_strace,TeamExodus/external_strace,Infinitive-OS/platform_external_strace,pombredanne/strace,geekboxzone/lollipop_external_strace,AOSP-YU/platform_external_strace,Yu-AndroidM/android_external_strace,bnoordhuis/strace,geekboxzone/mmallow_external_strace,geekboxzone/mmallow_external_strace,geofft/strace,Distrotech/strace,vrastogi/strace,YUPlayGodDev/platform_external_strace,kapdop/android_external_strace,xin3liang/platform_external_strace,YUPlayGodDev/platform_external_strace,vrastogi/strace,geekboxzone/lollipop_external_strace,vrastogi/strace,android-ia/platform_external_strace,bnoordhuis/strace,AOSP-YU/platform_external_strace,Yu-AndroidM/android_external_strace,MonkeyZZZZ/platform_external_strace,lkundrak/strace,geofft/strace,TeamExodus/external_strace,cuviper/strace,MonkeyZZZZ/platform_external_strace,Infinitive-OS/platform_external_strace,Yu-AndroidM/android_external_strace,YUPlayGodDev/platform_external_strace,Saruta/strace,cuviper/strace,kapdop/android_external_strace,kapdop/android_external_strace,Infinitive-OS/platform_external_strace,android-ia/platform_external_strace,MonkeyZZZZ/platform_external_strace