defconfig: change loglevel back to 4

Change-Id: Ibe04abfc799c255e1af08e00eee706f1acd13f2f
Add support for SC-05D aka SGH-N054 aka Galaxy Note released by NTT Docomo Japan.
This is a big commit, mosto of it is new config file, other changes are nonintrusive, and should not affect other devices.
The target is well tested by yours truly, all herdware features works as expected.

Change-Id: Ie909542cb421f1bb8465b61466bd53975253a2ae
Committer: Samir Ibradzic <sibradzic@gmail.com>