[Lucid LBM] SRU: Add input driver subpackage

[Stefan Bader]

SRU Justification:

Impact: Some newer models of Wacom tablets are not supported by the
kernel driver we got. For this reason we got a similar backports module
in Maverick. Just for Lucid the newer in-kernel versions do not work that
well as there has been a lot of multi-touch changes.

Fix: Backported the standalone driver from the Wacom driver project.

Testcase: Without this recent Wacom models (CTT460, CTL460, CTH460 and
CTH661 will not be working).

Note: This has been dormant a bit in my todo chest. And tracking is a bit
messed up in the sense that lbm for Maverick has been set to invalid in
this bug and been tracked by another. But basically this mimics the same
approach as has been done for Maverick.