[PATCH] syscall class hookup for all normal targets

Take default arch/*/kernel/audit.c to lib/, have those with special
needs (== biarch) define AUDIT_ARCH in their Kconfig.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 4d4b6fb..694b0c6 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -95,6 +95,10 @@
 	default y if PPC32 && SMP
 	default n
 
+config AUDIT_ARCH
+	bool
+	default y
+
 config DEFAULT_UIMAGE
 	bool
 	help