perf env: Normalize aarch64.* and arm64.* to arm64 in normalize_arch()

On my aarch64 big endian machine, the perf annotate does not work.

 # perf annotate
  Percent |      Source code & Disassembly of [kernel.kallsyms] for cycles (253 samples, percent: local period)
 --------------------------------------------------------------------------------------------------------------
  Percent |      Source code & Disassembly of [kernel.kallsyms] for cycles (1 samples, percent: local period)
 ------------------------------------------------------------------------------------------------------------
  Percent |      Source code & Disassembly of [kernel.kallsyms] for cycles (47 samples, percent: local period)
 -------------------------------------------------------------------------------------------------------------
 ...

This is because the arch_find() function uses the normalized architecture
name provided by normalize_arch(), and my machine's architecture name
aarch64_be is not normalized to arm64.  Like other architectures such as
arm and powerpc, we can fuzzy match the architecture names associated with
aarch64.* and normalize them.

It seems that there is also arm64_be architecture name, which we also
normalize to arm64.

Signed-off-by: Li Huafei <[email protected]>
Reviewed-by: James Clark <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Dengcheng Zhu <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Martin Liška <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Zhang Jinhao <[email protected]>
Link: http //lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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