x86_64: fix ia32 syscall count

Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>

include/asm-x86_64/ia32_unistd.h

@@ -317,6 +317,6 @@
 #define __NR_ia32_ppoll			309
 #define __NR_ia32_unshare		310
 
-#define IA32_NR_syscalls 315	/* must be > than biggest syscall! */
+#define IA32_NR_syscalls 311	/* must be > than biggest syscall! */
 
 #endif /* _ASM_X86_64_IA32_UNISTD_H_ */