bonic: libc: cpuacct support for setuid functions

Any of the setuid functions now updates /acct/uid/ with its own tid
before changing users. This is so we can properly account for cpu time
per uid.

Change-Id: I34186cf4d5228cac8439e582a9e26c01ef3011e4
Signed-off-by: Mike Chan <mike@android.com>

libc/arch-x86/syscalls/setuid.S

@@ -1,23 +0,0 @@
-/* autogenerated by gensyscalls.py */
-#include <sys/linux-syscalls.h>
-
-    .text
-    .type setuid, @function
-    .globl setuid
-    .align 4
-
-setuid:
-    pushl   %ebx
-    mov     8(%esp), %ebx
-    movl    $__NR_setuid32, %eax
-    int     $0x80
-    cmpl    $-129, %eax
-    jb      1f
-    negl    %eax
-    pushl   %eax
-    call    __set_errno
-    addl    $4, %esp
-    orl     $-1, %eax
-1:
-    popl    %ebx
-    ret