'UPDATE' as a name is somewhat unfortunate as the variable is intended only for
the 'devtool upgrade' operation and devtool also has an 'update-recipe' operation.
(From OE-Core rev: 4467aa0661e233f44c4ce029428c67d88fccfc07)
Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>