Bump linux to 4.15

We have a bunch of patches, but at least it's close to what's upstream!
This commit is contained in:
Palmer Dabbelt
2018-02-07 18:31:42 -08:00
parent 28df8c6e0e
commit ff2e910278

2
linux

Submodule linux updated: 87cb3b7930...8fa96b8877