mips n32: fix preadv/pwritev offset decoding
mips n32: fix preadv/pwritev offset decoding

In mips n32 abi, like in most of 32-bit architectures, offset
is passed to preadv/pwritev syscalls using two syscall arguments.

* io.c (print_llu_from_low_high_val) [LINUX_MIPSN32]: Remove.

geofft/strace,MonkeyZZZZ/platform_external_strace,vrastogi/strace,MonkeyZZZZ/platform_external_strace,vrastogi/strace,YUPlayGodDev/platform_external_strace,Yu-AndroidM/android_external_strace,vrastogi/strace,geekboxzone/mmallow_external_strace,MonkeyZZZZ/platform_external_strace,Yu-AndroidM/android_external_strace,Infinitive-OS/platform_external_strace,kapdop/android_external_strace,MonkeyZZZZ/platform_external_strace,AOSP-YU/platform_external_strace,Yu-AndroidM/android_external_strace,Infinitive-OS/platform_external_strace,AOSP-YU/platform_external_strace,kapdop/android_external_strace,AOSP-YU/platform_external_strace,bigzz/strace_android,cuviper/strace,kapdop/android_external_strace,TeamExodus/external_strace,Distrotech/strace,cuviper/strace,TeamExodus/external_strace,kapdop/android_external_strace,vrastogi/strace,geofft/strace,Saruta/strace,AOSP-YU/platform_external_strace,bigzz/strace_android,geofft/strace,Distrotech/strace,Yu-AndroidM/android_external_strace,vrastogi/strace,Saruta/strace,cuviper/strace,TeamExodus/external_strace,AOSP-YU/platform_external_strace,geofft/strace,cuviper/strace,Saruta/strace,Infinitive-OS/platform_external_strace,Infinitive-OS/platform_external_strace,Distrotech/strace,bigzz/strace_android,Saruta/strace,geekboxzone/mmallow_external_strace,Saruta/strace,geekboxzone/mmallow_external_strace,geekboxzone/mmallow_external_strace,Yu-AndroidM/android_external_strace,geekboxzone/mmallow_external_strace,cuviper/strace,YUPlayGodDev/platform_external_strace,Distrotech/strace,TeamExodus/external_strace,YUPlayGodDev/platform_external_strace,YUPlayGodDev/platform_external_strace,YUPlayGodDev/platform_external_strace,kapdop/android_external_strace,MonkeyZZZZ/platform_external_strace,Distrotech/strace,bigzz/strace_android,geofft/strace,Infinitive-OS/platform_external_strace,bigzz/strace_android,TeamExodus/external_strace