Bug 1595248 - Port bug 1593041: Add com.apple.security.smartcard entitlement. r=darktrojan

Needed for clients of some CryptoTokenKit.framework API's, per SmartCardServices(7).

build/macosx/hardenedruntime/developer.entitlements.xml

@@ -50,5 +50,8 @@
          for native messaging webextension helper applications launched by
          Thunderbird which rely on Apple Events to signal other processes. -->
     <key>com.apple.security.automation.apple-events</key><true/>
+
+    <!-- For SmartCardServices(7) -->
+    <key>com.apple.security.smartcard</key><true/>
   </dict>
 </plist>

build/macosx/hardenedruntime/production.entitlements.xml

@@ -50,5 +50,8 @@
          for native messaging webextension helper applications launched by
          Thunderbird which rely on Apple Events to signal other processes. -->
     <key>com.apple.security.automation.apple-events</key><true/>
+
+    <!-- For SmartCardServices(7) -->
+    <key>com.apple.security.smartcard</key><true/>
   </dict>
 </plist>