arm64: compat: wire up compat_sys_execveat

With 841ee230 ("ARM: wire up execveat syscall"), arch/arm/ has grown
support for the execveat system call.

This patch wires up the compat variant for arm64.
Signed-off-by: Will Deacon <will.deacon@arm.com>

arch/arm64/include/asm/unistd.h

@@ -44,7 +44,7 @@
 #define __ARM_NR_compat_cacheflush	(__ARM_NR_COMPAT_BASE+2)
 #define __ARM_NR_compat_set_tls		(__ARM_NR_COMPAT_BASE+5)
 
-#define __NR_compat_syscalls		387
+#define __NR_compat_syscalls		388
 #endif
 
 #define __ARCH_WANT_SYS_CLONE

arch/arm64/include/asm/unistd32.h

@@ -795,3 +795,5 @@ __SYSCALL(__NR_getrandom, sys_getrandom)
 __SYSCALL(__NR_memfd_create, sys_memfd_create)
 #define __NR_bpf 386
 __SYSCALL(__NR_bpf, sys_bpf)
+#define __NR_execveat 387
+__SYSCALL(__NR_execveat, compat_sys_execveat)