arm64: Use of_cpu_node_to_id helper for CPU topology parsing

Make use of the new generic helper to convert an of_node of a CPU
to the logical CPU id in parsing the topology.

Change-Id: If540bdef68ae2e7bc2e521de21dff8415279fc07
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Git-commit: 52cac1103af3283c7e4386b796da9cc92c3320e0
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


[rananta@codeaurora.org: Reformatted print statement to avoid info leak]
Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>