[Buildroot] "toolchain/patch-kernel.sh" => $(APPLY)

[Ulf Samuelsson]

Today most packages uses the patch-kernel.sh script in toolchain.
Should this really be hardwired.
Is it OK to create a symbolic variable.

APPLY:=toolchain/patch-kernel.sh

Also, I would like to see a "script" directory.
"patch-kernel.sh" is then moved here and 
"depmod.pl" maybe belongs as well in this instead of in
target/device/x86.



Best Regards
Ulf Samuelsson.