Extract the common codes of log checking and add the ability of log
checking for deb and ipk package backend.
(From OE-Core rev: d995871b433643958845e1d476813fa12888100e)
Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>