Variable flags have been fixed in commit
0329a7e3ac694737f2d2c1861f65492551360663 which introduces the
"_defaultval_flag_" prefix for default values.
This must not be ignored in delVarFlags and getVarFlags.
Fixes [YOCTO #15685]
(Bitbake rev: 2ee079fc1b7cf6d384ca17bd034b0a40461d9d18)
Signed-off-by: Louis Rannou <louis.rannou@non.se.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>