remove xcconfig 'VALID_ARCHS'

[lacklock]

On Xcode 12 ‘VALID_ARCHS’ is deprecated，should replace with ‘EXCLUDED_ARCHS’。

DJI-MSDK is working fine。

[dji-dev]

Agent comment from Luce Luo in Zendesk ticket #39280:

Dear Customer,

Thank you for contacting DJI.
Sorry, I'm not sure it's clear for me.
Can you please show me a screenshot or more detail where the VALID_ARCHS configured in Widger?

Thanks,

Luce Luo
DJI Developer Support

[lacklock]

On Xcode12 ‘VALID_ARCHS’ will cause build error of swift project.

[dji-dev]

Agent comment from Luce Luo in Zendesk ticket #39280:

Dear Customer,

Thank you for contacting DJI.
I see, will escalate this issue to the engineer.

Thanks,

Luce Luo
DJI Developer Support

[lacklock]

Replace it to this：
s.xcconfig = { 'EXCLUDED_ARCHS' => 'i386', 'ONLY_ACTIVE_ARCH' => 'YES'}

[mauron85]

On Xcode 12.1 when you don't remove that VALID_ARCHS, widget won't build for Simulator. More info here
https://stackoverflow.com/questions/63607158/xcode-12-building-for-ios-simulator-but-linking-in-object-file-built-for-ios

And solution here:

https://stackoverflow.com/a/63714000/3896616