Makes every packages built by the Go compiler select a new variable
introduced in this patch: BR2_PACKAGE_HOST_GO.
In later commits Go compiler variant will be introduced (built from
source, pre-built binaries) and selecting BR2_PACKAGE_HOST_GO will
force to add host-go provider to the dependency list.
The same pattern is used for Rust packages.
Signed-off-by: Thomas Perale <thomas.perale@mind.be>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>