Fix write_cache to not be a privileged operation so that the caching tests

can be added to the build. Update caching tests to detect non-ns-resolution
filesystems and back off on the timing test.

parser/parser_main.c

@@ -56,7 +56,7 @@
 #define MOUNTED_FS "/proc/mounts"
 #define AADFA "pattern=aadfa"
 
-#define PRIVILEGED_OPS (write_cache || kernel_load)
+#define PRIVILEGED_OPS (kernel_load)
 #define UNPRIVILEGED_OPS (!(PRIVILEGED_OPS))
 
 const char *parser_title	= "Novell/SUSE AppArmor parser";