Clean up podspec template (#84662)

packages/flutter_tools/lib/src/commands/build_ios_framework.dart

@@ -272,14 +272,14 @@ class BuildIOSFrameworkCommand extends BuildSubCommand {
 Pod::Spec.new do |s|
   s.name                  = 'Flutter'
   s.version               = '${gitTagVersion.x}.${gitTagVersion.y}.$minorHotfixVersion' # ${_flutterVersion.frameworkVersion}
-  s.summary               = 'Flutter Engine Framework'
+  s.summary               = 'A UI toolkit for beautiful and fast apps.'
   s.description           = <<-DESC
-Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.
+Flutter is Google's UI toolkit for building beautiful, fast apps for mobile, web, desktop, and embedded devices from a single codebase.
 This pod vends the iOS Flutter engine framework. It is compatible with application frameworks created with this version of the engine and tools.
 The pod version matches Flutter version major.minor.(patch * 100) + hotfix.
 DESC
   s.homepage              = 'https://flutter.dev'
-  s.license               = { :type => 'MIT', :text => <<-LICENSE
+  s.license               = { :type => 'BSD', :text => <<-LICENSE
 $licenseSource
 LICENSE
   }

packages/flutter_tools/templates/module/ios/host_app_ephemeral/Flutter/engine/Flutter.podspec.tmpl

@@ -5,14 +5,16 @@
 Pod::Spec.new do |s|
   s.name             = 'Flutter'
   s.version          = '1.0.0'
-  s.summary          = 'High-performance, high-fidelity mobile apps.'
+  s.summary          = 'A UI toolkit for beautiful and fast apps.'
   s.description      = <<-DESC
-Flutter provides an easy and productive way to build and deploy high-performance mobile apps for Android and iOS.
+Flutter is Google's UI toolkit for building beautiful, fast apps for mobile, web, desktop, and embedded devices from a single codebase.
+This pod vends the iOS Flutter engine framework. It is compatible with application frameworks created with this version of the engine and tools.
                        DESC
-  s.homepage         = 'https://flutter.io'
-  s.license          = { :type => 'MIT' }
+  s.homepage         = 'https://flutter.dev'
+  s.license          = 'BSD'
   s.author           = { 'Flutter Dev Team' => 'flutter-dev@googlegroups.com' }
   s.source           = { :git => 'https://github.com/flutter/engine', :tag => s.version.to_s }
+  s.documentation_url     = 'https://flutter.dev/docs'
   s.ios.deployment_target = '8.0'
   s.vendored_frameworks = 'Flutter.xcframework'
 end