sparc: Hook up bpf system call.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc arch/sparc/include/uapi/asm/unistd.h
Simple merge

diff --cc arch/sparc/kernel/systbls_32.S
Simple merge

diff --cc arch/sparc/kernel/systbls_64.S
Simple merge