Add missing flags in glibc arm

src/unix/notbsd/linux/other/b32/arm.rs

@@ -81,11 +81,13 @@ pub const MAP_NORESERVE: ::c_int = 0x04000;
 
 pub const EDEADLOCK: ::c_int = 35;
 
+pub const SO_PASSCRED: ::c_int = 16;
 pub const SO_PEERCRED: ::c_int = 17;
 pub const SO_RCVLOWAT: ::c_int = 18;
 pub const SO_SNDLOWAT: ::c_int = 19;
 pub const SO_RCVTIMEO: ::c_int = 20;
 pub const SO_SNDTIMEO: ::c_int = 21;
+pub const SO_SNDBUFFORCE: ::c_int = 32;
 
 pub const FIOCLEX: ::c_ulong = 0x5451;
 pub const FIONBIO: ::c_ulong = 0x5421;