MIPS: Netlogic: Use MIPS topology.h

MIPS: Netlogic: Use MIPS topology.h

commit fdcfda3dd490 ("MIPS: Support CPU topology files in sysfs")
added topology related macros for all MIPS platforms and commit
a1921b8bb691 ("MIPS: NL: Fix nlm_xlp_defconfig build error")
removed most of the contents from mach-netlogic/topology.h.

The netlogic specific topology is not needed anymore, we just need
to setup the package field in current_cpu_data.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8888/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>