Multilib changes RECIPE_SYSROOT which can make the value in PSEUDO_IGNORE_PATHS
incorrect. Add the correct value, which fixes races over files in the sysroot.
[YOCTO #14581]
(From OE-Core rev: 64003e5e1b51c0cd561681b1ac13293546b8182b)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>