Add missing syscall numbers for aarch64-musl

Author: alindima

src/unix/linux_like/linux/musl/b64/aarch64/mod.rs

@@ -170,7 +170,7 @@ pub const MAP_POPULATE: ::c_int = 0x08000;
 pub const MAP_NONBLOCK: ::c_int = 0x010000;
 pub const MAP_STACK: ::c_int = 0x020000;
 pub const MAP_HUGETLB: ::c_int = 0x040000;
-pub const MAP_SYNC : ::c_int = 0x080000;
+pub const MAP_SYNC: ::c_int = 0x080000;
 
 pub const SOCK_STREAM: ::c_int = 1;
 pub const SOCK_DGRAM: ::c_int = 2;
@@ -284,6 +284,10 @@ pub const SYS_umount2: ::c_long = 39;
 pub const SYS_mount: ::c_long = 40;
 pub const SYS_pivot_root: ::c_long = 41;
 pub const SYS_nfsservctl: ::c_long = 42;
+pub const SYS_statfs: ::c_long = 43;
+pub const SYS_fstatfs: ::c_long = 44;
+pub const SYS_truncate: ::c_long = 45;
+pub const SYS_ftruncate: ::c_long = 46;
 pub const SYS_fallocate: ::c_long = 47;
 pub const SYS_faccessat: ::c_long = 48;
 pub const SYS_chdir: ::c_long = 49;