uClibc: fix mips signal constants

Author: jhwgh1968

src/unix/uclibc/mips/mod.rs

@@ -226,8 +226,8 @@ pub const SO_BPF_EXTENSIONS: ::c_int = 48;
 pub const FIOCLEX: ::c_ulong = 0x6601;
 pub const FIONBIO: ::c_ulong = 0x667e;
 
-pub const SA_ONSTACK: ::c_int = 0x08000000;
-pub const SA_SIGINFO: ::c_int = 0x00000008;
+pub const SA_ONSTACK: ::c_uint = 0x08000000;
+pub const SA_SIGINFO: ::c_uint = 0x00000008;
 pub const SA_NOCLDWAIT: ::c_int = 0x00010000;
 
 pub const SIGCHLD: ::c_int = 18;