multilib_header: avoid sstate checksum issues for -nativesdk recipes
Much as with -native recipes, as addressed in commit
b15730caf0d4c40271796887505507f2501958bb, arch specific variables
like MIPSPKGSFX_ABI were affecting -nativesdk sstate checksums for
recipes like nativesdk-glibc-initial.
Disable multilib_header for nativesdk as we don't use multilibs in
this scenario.
[YOCTO #10320]
(From OE-Core rev:
f1c7b4f16dc9a7e5155108641fed8b3d98c931f3)
Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
