Sync with Debian svn r20749 for upload based on 3.11.6-1
Refresh patches/bugfix/arm/omap-musb-choice.patch for 3.11.6
Adjust patches/grml/grml_logo.patch for Linux for Workgroups logo

NOTE: This change can be reverted as soon as we've a kernel version
newer than 3.11 again, the patch has been adjusted only for
the Linux for Workgroups logo to apply cleany there, from the
user's PoV nothing has changed.
Release new version 3.11.6-1+grml.1
Release new linux-meta-grml package version 3.11.6-1+grml.1 for new kernel