[SRU][Mako][Wily][Vivid] Replace EXT{2, 3} with EXT4_USE_FOR_EXT23

[Tim Gardner]

On 11/06/2015 02:10 PM, Chris J Arges wrote:
> If you switch to this CONFIG make sure the following is backported into
> these branches as it fixes
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1292234.
> 

I think this doesn't apply until 3.17.

-- 
Tim Gardner tim.gardner at canonical.com