[Skiboot] skiboot 5.3.5 tagged and released

[Stewart Smith]

Just some string updates this time around, release notes below:

skiboot-5.3.5
-------------

skiboot-5.3.5 was released on Wednesday September 14th, 2016.

This is the 6th stable release of skiboot 5.3, the new stable release of
skiboot (first released with 5.3.0 on August 2nd, 2016).

Skiboot 5.3.5 replaces skiboot-5.3.4 as the current stable version. It contains
a couple of minor bug fixes: simply clarifying two error messages.

Over skiboot-5.3.4, the following fixes are included:

- centaur: print message on disabling xscoms to centaur due to many errors
- slw: improve error message for SLW timer stuck
  We still register dump, but only to in memory console buffer by default.


-- 
Stewart Smith
OPAL Architect, IBM.