[PATCH v6 1/3] Tunables: Add tunables of spin count for pthread adaptive spin mutex

[Wang, Kemi]

> This tunable is specific to pthread.  Please place it in nptl/dl-tunables.list with pthread namespace.  See sysdeps/x86/dl-tunables.list for an example.

Yes. 
Do you suggest to move mutex tunable from elf/dl-tunables.list to nptl/dl-tunables.list



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H.J.