kmod: bump to version 19

- Bump to version 19
- Rename 0001 patch to follow the new name convention
- Adapt the 0001 patch to the new version
- Remove the already-upstreamed 0002 patch
- Update the hash value

[Thomas: adapt comment in the updated 0001 patch.]

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>