x86/entry: Fix build error x86 with !CONFIG_POSIX_TIMERS

Add missing semicolon.

Fixes: a74d187c ("x86/entry: Refactor SYS_NI macros")
Reported-by: NIngo Molnar <mingo@kernel.org>
Signed-off-by: NBrian Gerst <brgerst@gmail.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200324143520.898733-1-brgerst@gmail.com

arch/x86/include/asm/syscall_wrapper.h

@@ -86,7 +86,7 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
 	}
 
 #define __SYS_NI(abi, name)						\
-	SYSCALL_ALIAS(__##abi##_##name, sys_ni_posix_timers)
+	SYSCALL_ALIAS(__##abi##_##name, sys_ni_posix_timers);
 
 #ifdef CONFIG_X86_64
 #define __X64_SYS_STUB0(name)						\