Allow time comparisons to be made regardless of where the script was run.
(From OE-Core rev: 018e74f2ce0b1a4c0614c99bc19f07f787d61123)
Signed-off-by: Yuta Hayama <hayama@lineo.co.jp>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>