Revises the test to account for changes in LIFO object behavior
in the unified kernel.
Note: A LIFO object shouldn't really be used to try and pass
data items between two different threads in an ordered manner,
as this test is doing. Ordered behavior should only be expected
when a single thread is adding and removing items from a LIFO.
A LIFO is typically used to pass data items between different
threads when ordering doesn't matter -- for example, when using the
LIFO to implement a shared pool of data items that can be allocated
and returned by a bunch of threads. (A LIFO object is more efficient
than a FIFO object for implementing this kind of pool.)
Change-Id: Ic4cbd8b8368477e72c1bf0bca35600b78f963933
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>