UAPI value collision: STATX_ATTR_MOUNT_ROOT vs STATX_ATTR_DAX

[David Howells]

Hi Linus, Miklos, Ira,

It seems that two patches that got merged in the 5.8 merge window collided and
no one noticed until now:

80340fe3605c0 (Miklos Szeredi     2020-05-14 184) #define STATX_ATTR_MOUNT_ROOT 
        0x00002000 /* Root of a mount */
...
712b2698e4c02 (Ira Weiny          2020-04-30 186) #define STATX_ATTR_DAX        
                0x00002000 /* [I] File is DAX */

The question is, what do we do about it?  Renumber one or both of the
constants?

David