linux: Add patch to support TechnoTrend CT2-4400 and CT2-4650 CI

This patch adds support for TechnoTrend CT2-4400 and CT2-4650 CI USB DVB-C/T/T2 tuners. In addition it improves firmware loading and power management for Si2168/2157 based tuners (only other tuner besides the two TT tuners is PCTV 292e).

This patch has to be reworked for 3.17 and is obsolete when 3.18 kernel comes.

Tested with x86_64 and is ok. Other architectures I'm unable to test...