build,configure.ac,extras: fix EC dynamic support detection for aarch64

[potatogim]

EC dynamic support is not detected properly when we try to build under aarch64 environment.

This patch adds 'aarch64*' glob during compilation to make sure it works expected.

Change-Id: I98b19f42ef325780adcae8f0d2ae6dee515d63a6 Fixes: #4105

[potatogim]

/recheck smoke

[mohit84]

/run regression

[xhernandez]

The patch is fine. However be aware that the actual implementation using Neon SIMD is not there (it was planned to be added, that's why the detection was added to the configure script, but it's not yet implemented). This means that the configure script will correctly detect that Neon extensions can be used, but the EC code will still use non-SIMD code.

[stale[bot]]

Thank you for your contributions. Noticed that this issue is not having any activity in last ~6 months! We are marking this issue as stale because it has not had recent activity. It will be closed in 2 weeks if no one responds with a comment here.

[stale[bot]]

Closing this issue as there was no update since my last update on issue. If this is an issue which is still valid, feel free to open it.