Move BoringSSL.podspec into src, and point Podfiles to it
diff --git a/examples/objective-c/auth_sample/Podfile b/examples/objective-c/auth_sample/Podfile
index ea70511..7affe08 100644
--- a/examples/objective-c/auth_sample/Podfile
+++ b/examples/objective-c/auth_sample/Podfile
@@ -2,6 +2,7 @@
 platform :ios, '8.0'
 
 pod 'Protobuf', :path => "../../../third_party/protobuf"
+pod 'BoringSSL', :podspec => "../../../src/objective-c"
 pod 'gRPC', :path => "../../.."
 
 target 'AuthSample' do
diff --git a/examples/objective-c/helloworld/Podfile b/examples/objective-c/helloworld/Podfile
index 16af075..eebf054 100644
--- a/examples/objective-c/helloworld/Podfile
+++ b/examples/objective-c/helloworld/Podfile
@@ -2,6 +2,7 @@
 platform :ios, '8.0'
 
 pod 'Protobuf', :path => "../../../third_party/protobuf"
+pod 'BoringSSL', :podspec => "../../../src/objective-c"
 pod 'gRPC', :path => "../../.."
 
 target 'HelloWorld' do
diff --git a/examples/objective-c/route_guide/Podfile b/examples/objective-c/route_guide/Podfile
index efa46bb..b9f2fef 100644
--- a/examples/objective-c/route_guide/Podfile
+++ b/examples/objective-c/route_guide/Podfile
@@ -3,6 +3,7 @@
 
 target 'RouteGuideClient' do
   pod 'Protobuf', :path => "../../../third_party/protobuf"
+  pod 'BoringSSL', :podspec => "../../../src/objective-c"
   pod 'gRPC', :path => "../../.."
   # Depend on the generated RouteGuide library.
   pod 'RouteGuide', :path => '.'