Update to the latest stable upstream version.
Drop unneeded make variables to remove redundant assignments seen during
invocation of package Makefile.
Also remove the following patch now included upstream:
* 200-fix-install-param-order-on-macos.patch
Compile and run-tested on malta/mips32be, using bpftool directly and also
libbpf (linked with tc) to inspect and load simple eBPF programs.
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>