Fixes podspec for master #11640

Summary:
Currently the master Podspec is broken because tvOS files are being included, to avoid this compile error the file is being excluded.

c92ad5f

Thats the commit which introduced the breakage anything later that that will fail. Aka RN 0.41 will fail because of this.

**Test plan (required)**

Tested on new project against master

// cc ide
Closes #11667

Differential Revision: D4375453

Pulled By: ericvicenti

fbshipit-source-id: 035cdb8ef36054b40d1aaf59551cdc2e16f0cb19

React.podspec

@@ -34,11 +34,16 @@ Pod::Spec.new do |s|
     ss.dependency      'React/yoga'
     ss.dependency      'React/cxxreact'
     ss.source_files  = "React/**/*.{c,h,m,mm,S}"
-    ss.exclude_files = "**/__tests__/*", "IntegrationTests/*", "ReactCommon/yoga/*"
+    ss.exclude_files = "**/__tests__/*", "IntegrationTests/*", "React/**/RCTTVView.*", "ReactCommon/yoga/*"
     ss.frameworks    = "JavaScriptCore"
     ss.libraries     = "stdc++"
   end
 
+  s.subspec 'tvOS' do |ss|
+    ss.dependency       'React/Core'
+    ss.source_files   = "React/**/RCTTVView.{h, m}"
+  end
+
   s.subspec 'jschelpers' do |ss|
     ss.source_files = 'ReactCommon/jschelpers/{JavaScriptCore,JSCWrapper}.{cpp,h}'
     ss.header_dir   = 'jschelpers'