Fix Autolinking for React Native 0.69

[Naturalclar]

Things to consider before you submit the PR:

• Has CHANGELOG.md been updated?
• Are tests passing locally?
• Are the files formatted correctly?
• Did you test your change with either the sample apps that are included in the repository or with a blank app that uses your change?

Description

Moved podspec location to root directory of project as it is required for autolinking to work in react-native/cli v8
Also removed podspecPath from react-native.config as the parameter is deprecated, making autolink to fail

react-native-community/cli#1537

A few sentences describing the overall goals of the pull request.

Related PRs or issues

List related PRs and other issues.
#979

Misc

Add what's missing, notes on what you tested, additional thoughts or questions.

[MatkovIvan]

I'm not sure that it will work with previous versions, so it's just TODO for reviewers: we must test it not only with 0.69

[sunchanras]

Any good news to update on this issue ?

[DmitriyKirakosyan]

Hi @sunchanras , I'm currently testing it with different RN version. I confirm it works with RN 0.69 and it also looks working for pervious versions. I will merge it as soon as I'm sure it doesn't break anything.

[sunchanras]

@DmitriyKirakosyan Nice. Thank you.

[DmitriyKirakosyan]

I've recreated this in #981, with a couple of tweaks. I'm closing it. Please follow the progress in #981.