branch master updated (ed19fea -> e32d302)

[Danny Milosavljevic]

dannym pushed a change to branch master
in repository guix.

      from  ed19fea   gnu: graphicsmagick: Update to 1.3.28 [‘security fixes’].
       new  30aeb84   system: Add Banana Pi M2 Ultra installer.
       new  f074f5e   gnu: u-boot: Update to 2018.01.
       new  e32d302   gnu: cross-base: Apply gcc 6 patch to gcc >= 6.

The 3 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 gnu/bootloader/u-boot.scm    | 18 ++++++++++++++++++
 gnu/packages/bootloaders.scm | 15 ++++++++++-----
 gnu/packages/cross-base.scm  |  4 +++-
 gnu/system/install.scm       | 17 +++++++++++++++++
 4 files changed, 48 insertions(+), 6 deletions(-)