update macos podspec

@@ -43,8 +43,8 @@ Pod::Spec.new do |s|
 s.authors = 'The Chromium Authors'
 s.source = { :path => '.' }
 
-s.source_files = 'Classes/**/*.{h,m}'
-s.public_header_files = 'Classes/*.h'
+s.source_files = 'firebase_remote_config/Sources/firebase_remote_config/**/*.{h,m}'
+s.public_header_files = 'firebase_remote_config/Sources/firebase_remote_config/include/*.h'
 
 s.platform = :osx, '10.13'
 
@@ -58,7 +58,7 @@ Pod::Spec.new do |s|
 
 s.static_framework = true
 s.pod_target_xcconfig = {
-'GCC_PREPROCESSOR_DEFINITIONS' => "LIBRARY_VERSION=\\@\\\"#{library_version}\\\" LIBRARY_NAME=\\@\\\"flutter-fire-rc\\\"",
+'GCC_PREPROCESSOR_DEFINITIONS' => "LIBRARY_VERSION=\\\"#{library_version}\\\" LIBRARY_NAME=\\\"flutter-fire-rn\\\"",
 'DEFINES_MODULE' => 'YES'
 }
 end