bionic: syscalls: Add ioprio_set/ioprio_get syscall wrappers

Signed-off-by: San Mehat <san@google.com>
diff --git a/libc/arch-x86/syscalls.mk b/libc/arch-x86/syscalls.mk
index e718e18..dbc55e6 100644
--- a/libc/arch-x86/syscalls.mk
+++ b/libc/arch-x86/syscalls.mk
@@ -153,6 +153,8 @@
 syscall_src += arch-x86/syscalls/sched_get_priority_max.S
 syscall_src += arch-x86/syscalls/sched_get_priority_min.S
 syscall_src += arch-x86/syscalls/sched_rr_get_interval.S
+syscall_src += arch-x86/syscalls/ioprio_set.S
+syscall_src += arch-x86/syscalls/ioprio_get.S
 syscall_src += arch-x86/syscalls/uname.S
 syscall_src += arch-x86/syscalls/__wait4.S
 syscall_src += arch-x86/syscalls/umask.S