[PATCH] arm: fix multiarch memcpy for negative len [BZ #25620]

[Alexander Anisimov]

Hi,

We are eager to finalize the Open Mobile Platform contribution to close CVE-2020-6096 [BZ #25620] in the glibc,
but legal process on FSF side seems to be on a hold for more than a week with no feedback. 
Could we somehow assist or help to speedup the process?

Best regards,
Alexander Anisimov
Software Engineer,
Open Mobile Platform.