sw64: perf: add fp based stack trace support

Sunway inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I56X48



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It used to obtain return address of function by scanning entire
stack which lead to inaccurate result. This patch adds fp based
stack trace support to improve efficiency and accuracy.

Because toolchain is not ready yet, we take CONFIG_FRAME_POINTER
to activate this support, and it should be disabled by default.

Signed-off-by: Wu Liliu <wuliliu@wxiat.com>

Signed-off-by: Gu Zitao <guzitao@wxiat.com>