In tree234.c, change a while() loop to a for() loop so
that the compiler will realize we loop at least once.
(From OE-Core rev: 631cd6f9144fa5dd3a36480905d6edc9b5e81520)
Signed-off-by: Joe Slater <joe.slater@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>