Legacy FIFO operations were failing and thus the TC was failing to run.
Stop using k_fifo_get() for allocation and use a bitmap allocator. A
couple of the bitmap operations should be moved to a common header
once ZEP-1347 is completed.
Passes on all arches and boards, whitelist removed; ARM excluded
though due to missing bitfield implementation as per ZEP-82.
Note there is a false checkpatch positive in the decl of
sys_bitfield_find_first_clear().
Change-Id: I1d3ce8e988bf799573041026e419e3946d153590
Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
462c6efca4