[OE-core] [PATCH v8 2/3] kernel-devicetree.bbclass: Rework to use tasks

This reworks the compile and install in tasks as well as run the build of the Device Tree files in parallel, if possible. Signed-off-by: Otavio Salvador --- Changes in v8: None Changes in v7: - Split tasks change from linux-dtb rework - Run do_compile_devicetree before do_compile_kernelmodules

[OE-core] [PATCH v8 2/3] kernel-devicetree.bbclass: Rework to use tasks

This reworks the compile and install in tasks as well as run the build of the Device Tree files in parallel, if possible. Signed-off-by: Otavio Salvador --- Changes in v7: - Split tasks change from linux-dtb rework - Run do_compile_devicetree before do_compile_kernelmodules Changes in v6: None