[PATCH 14/16] gcc: Add CTIMER_PUSH/POP to gcc's copy of libiberty

[DJ Delorie]

This is the same patch as 09/16.  There is only one libiberty master,
controlled by gcc, it is not neccessary to submit separate patches for
each copy of it.

The convention is: Any libiberty patch approved by gcc maintainers is
auto-approved for the other repos.