AppArmor: Retrieve the dentry_path for error reporting when path lookup fails
AppArmor: Retrieve the dentry_path for error reporting when path lookup fails

When __d_path and d_absolute_path fail due to the name being outside of
the current namespace no name is reported.  Use dentry_path to provide
some hint as to which file was being accessed.

Signed-off-by: John Johansen <28c604219333b0b085913923f8c4c96032f02c12@canonical.com>
Acked-by: Kees Cook <64ee4e7370e7b8397233ac64db1a7307a4f26cff@ubuntu.com>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas