[iOS/OSX/GN] Add -install_name to the shared_library ldflags on iOS.

ios/third_party/earl_grey/BUILD.gn

Index: ios/third_party/earl_grey/BUILD.gn
diff --git a/ios/third_party/earl_grey/BUILD.gn b/ios/third_party/earl_grey/BUILD.gn
index bf9c18c3563800c8e8a634b3b7aad1be587bae8e..421ed8acec7d2901aeb1942ada11d2f063000dd6 100644
--- a/ios/third_party/earl_grey/BUILD.gn
+++ b/ios/third_party/earl_grey/BUILD.gn
@@ -16,9 +16,7 @@ config("config") {
   ldflags = common_flags
 }
 
-ios_framework_bundle("earl_grey") {
-  output_name = "EarlGrey"
-
+ios_framework_bundle("EarlGrey") {
   testonly = true
   sources = [
     "src/EarlGrey/Action/GREYAction.h",
@@ -238,7 +236,7 @@ ios_framework_bundle("earl_grey") {
     "//third_party/google_toolbox_for_mac",
   ]
   public_deps = [
-    "//ios/third_party/ochamcrest",
+    "//ios/third_party/ochamcrest:OCHamcrest",
   ]
 
   libs = [