layer.conf: fix syntax error in PATH setting
Commit
05a87be51b44608ce4f77ac332df90a3cd2445ef introduced
a Python conditional expression when updating PATH that
generates syntax warnings in bitbake-cookerdaemon.log:
Var <PATH[:=]>:1: SyntaxWarning: "is not" with a literal. Did you mean "!="?
Fix this by using the more appropriate '!=' comparison
operator.
Signed-off-by: Matt Madison <matt@madison.systems>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit
2e753a12cf6bb98f9e0940e5ed6255ce8c538eed)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
