gitignores: ignore some more generated files

Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

compel/.gitignore

+arch/x86/plugins/std/sys-exec-tbl-64.c
+arch/x86/plugins/std/syscalls-64.S
+include/version.h
+plugins/include/uapi/std/asm/syscall-types.h
+plugins/include/uapi/std/syscall-64.h
+plugins/include/uapi/std/syscall-codes-64.h
+plugins/include/uapi/std/syscall-codes.h
+plugins/include/uapi/std/syscall.h

test/.gitignore

@@ -13,3 +13,4 @@
 /stats-restore
 /zdtm_mount_cgroups.lock
 /compel/handle_binary
+/umount2