On the realtek target, the subtarget makefiles include a KERNEL_PATCHVER
setting, shadowing KERNEL_PATCHVER from target/linux/realtek/Makefile.
This makes the realtek target an exception in this regard, and makes
switching kernel version a bit bothersome. Remove the overrides so all
subtargets use the same kernel version.
Signed-off-by: Sander Vanheule <sander@svanheule.net>
Our current Makefiles a little bit messy and can be improved somewhat,
both in whitespace and in style.
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>