pending PRs

[Sébastien Bourdeauducq]

Hi,

could someone have a look at those PRs?

These contain patches and only impact the Milkymist BSP, so it should be 
very easy to address them:
* https://www.rtems.org/bugzilla/show_bug.cgi?id=1966 Milkymist SoC 1.1 
support
* https://www.rtems.org/bugzilla/show_bug.cgi?id=1956 Fix 
CPU_STACK_ALIGNMENT
* https://www.rtems.org/bugzilla/show_bug.cgi?id=1970 Support for new 
Milkymist sysctl addresses and clock frequency detection
* https://www.rtems.org/bugzilla/show_bug.cgi?id=1972 Milkymist driver 
support for different video formats


And these might require a little more time:
* https://www.rtems.org/bugzilla/show_bug.cgi?id=1961 Race condition 
when using rtems_message_queue_send in ISR
* https://www.rtems.org/bugzilla/show_bug.cgi?id=1841 Incorrect 
processing of DNS info from DHCP
* https://www.rtems.org/bugzilla/show_bug.cgi?id=1963 
_RBTree_Container_of macro is broken
* https://www.rtems.org/bugzilla/show_bug.cgi?id=1964 
_Chain_Is_first/last overshoot

The race condition with rtems_message_queue_send is actually seen on our 
platform and causing freezes.

Thanks,
Sébastien