fix(android): fix ndkVersion is unset when building from source

[tido64]

Summary:

ndkVersion is unset when building from source using this guide: https://reactnative.dev/contributing/how-to-build-from-source

Changelog:

[ANDROID] [FIXED] - Fix ndkVersion is unset when building from source

Test Plan:

git clone https://github.com/microsoft/react-native-test-app.git
cd react-native-test-app
npm run set-react-version nightly
yarn

# Manually apply the patch in node_modules/react-native/ReactAndroid/build.gradle.kts
# Enable building from source
sed -i '' 's/#react.buildFromSource/react.buildFromSource/' example/android/gradle.properties

# Build
cd example/android
./gradlew assembleDebug

[facebook-github-bot]

@cortinico has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	17,935,067	+1
android	hermes	armeabi-v7a	n/a	--
android	hermes	x86	n/a	--
android	hermes	x86_64	n/a	--
android	jsc	arm64-v8a	21,293,279	-2
android	jsc	armeabi-v7a	n/a	--
android	jsc	x86	n/a	--
android	jsc	x86_64	n/a	--

Base commit: 7fffe69
Branch: main

[facebook-github-bot]

@cortinico merged this pull request in a1171f7.

[kelset]

@cortinico do we need to get this in the 73/74 branches? we only build nightlies from sources so for us in main should be enough, but not sure if it might be needed elsewhere

[cortinico]

@cortinico do we need to get this in the 73/74 branches? we only build nightlies from sources so for us in main should be enough, but not sure if it might be needed elsewhere

Nope I don't think we do unless we got reports of specific failures on a given version