meson.bbclass: enable qemu exe wrapper in nativesdk

meson.bbclass: enable qemu exe wrapper in nativesdk

nativesdk builds are cross-builds like target ones, and
so meson expectations regarding ability to run binaries are the same:
either provide the wrapper, or disable the build time options that
need executing target binaries during build time (if such options
are made available by upstream).

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>