r6040: define and use MLSR register bits
r6040: define and use MLSR register bits

Define the MLSR (MAC Last Status Register bits) for:
- tx fifo under-run
- tx exceed collision
- tx late collision

Signed-off-by: Florian Fainelli <73262ad0334ab37227b2f7a0205f51db1e606681@openwrt.org>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

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