Linux 4.7 syscall changes

Syscall changes in Linux 4.7 compared with 4.6: 2 added, 0 removed.

Added in Linux 4.7

SYSCALLDESCRIPTIONARCHITECTURES AND NUMBERS
preadv2 read or write data into multiple buffers x32 1073742358
pwritev2 read or write data into multiple buffers x32 1073742359

Same data from the API: https://api.syscall.sh/v2/diff/4.6/4.7