arm64: Do not include asm/unistd32.h in asm/unistd.h

This patch only includes asm/unistd32.h where necessary and removes its
inclusion in the asm/unistd.h file. The __SYSCALL_COMPAT guard is
dropped.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
diff --git a/arch/arm64/kernel/sys32.S b/arch/arm64/kernel/sys32.S
index c1e46db..54c4aec 100644
--- a/arch/arm64/kernel/sys32.S
+++ b/arch/arm64/kernel/sys32.S
@@ -149,11 +149,10 @@
 
 #undef __SYSCALL
 #define __SYSCALL(x, y)		.quad	y	// x
-#define __SYSCALL_COMPAT
 
 /*
  * The system calls table must be 4KB aligned.
  */
 	.align	12
 ENTRY(compat_sys_call_table)
-#include <asm/unistd.h>
+#include <asm/unistd32.h>