DELIA-60035: Enable cobalt 23 for all platforms

Reason for change: patch upstreamed for platform.
Test Procedure: Refer Ticket.
Risks: None
Priority: P1
Signed-off-by: sramul630 <sunil_ramulu@comcast.com>

Change-Id: I392fa266e5c1852286713a60e4ce5f8f055d9bf8

src/third_party/starboard/rdk/shared/ess_input.cc

diff --git a/src/third_party/starboard/rdk/shared/ess_input.cc b/src/third_party/starboard/rdk/shared/ess_input.cc
index a069fcc..86feef8 100644
--- a/src/third_party/starboard/rdk/shared/ess_input.cc
+++ b/src/third_party/starboard/rdk/shared/ess_input.cc
@@ -351,6 +351,10 @@
     case KEY_INFO:
      return kSbKeyInfo;
 
+    //[sky] mapping of the YouTube partner button
+    case KEY_KPLEFTPAREN:
+     return kSbKeyLaunchThisApplication;
+
     case KEY_UNKNOWN:
       break;
   }