[iOS] [Changed] Pass reactNativePath to codegen_pre_install

[brunolemos]

Summary

codegen_pre_install needs the path param as much as use_react_native, and we pass to use_react_native by default.

react-native/template/ios/Podfile

Line 9 in c0a2998

use_react_native!(:path => config[:reactNativePath])

react-native/template/ios/Podfile

Lines 16 to 18 in c0a2998

	pre_install do |installer|
	codegen_pre_install(installer)
	end

Changelog

[iOS] [Changed] - Pass reactNativePath to codegen_pre_install

Test Plan

Tested on my local machine, pod install fails if I set reactNativePath to an wrong path and works if it's correct:

ping: react-native-community/releases#207

[brunolemos]

Closing since codegen invocation was moved out of the podfile c901c1f#diff-fcc02228077c73cb58800911f68c7de9938b9848279ee6caa73c27dd63d27212