nativesdk-packagegroup-sdk-host: reverse inherit order

nativesdk-packagegroup-sdk-host: reverse inherit order

Currently, tow successive toolchain builds for different hosts, will
issue a warning:

WARNING: The recipe nativesdk-packagegroup-sdk-host is trying to install
files into a shared area when those files already exist. Those files and
their manifest location are:
   /ssd/work/yp1/build/tmp/deploy/ipk/all/nativesdk-packagegroup-sdk-host_1.0-r11_all.ipk
   Matched in manifest-x86_64-nativesdk-packagegroup-sdk-host.package_write_ipk
Please verify which package should provide the above files.

That's because packagegroup is manually inherited after nativesdk which
is usually a BBCLASSEXTEND operation, done last.

[YOCTO #5396]

(From OE-Core rev: 7621a40d24f3e53b373f233e070894e4afc2b4b2)

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>