Show eco_hint for optimized power mode

Bug: 358042597
Flag: NONE not needed
Test: https://screenshot.googleplex.com/A2y7LJECaefuDtz
Change-Id: Ifd232484794ad247eec252325ca92f5b1c4cd870
diff --git a/Settings/res/values/energy-modes.xml b/Settings/res/values/energy-modes.xml
index 56e220a..332675b 100644
--- a/Settings/res/values/energy-modes.xml
+++ b/Settings/res/values/energy-modes.xml
@@ -61,7 +61,7 @@
         <item>[Insert feature 1]</item>
         <item>[Insert feature 2]</item>
     </string-array>
-    <string name="energy_mode_moderate_eco_hint" />
+    <string name="energy_mode_moderate_eco_hint">@string/energy_mode_eco_hint</string>
     <string-array name="energy_mode_moderate_baseExemptPackages" translatable="false" />
     <string-array name="energy_mode_moderate_vendorExemptPackages" translatable="false" />
     <integer name="energy_mode_moderate_baseAllowedReasons">7</integer>
diff --git a/Settings/src/com/android/tv/settings/device/eco/EnergyModesHelper.java b/Settings/src/com/android/tv/settings/device/eco/EnergyModesHelper.java
index b5a605a..b987f4f 100644
--- a/Settings/src/com/android/tv/settings/device/eco/EnergyModesHelper.java
+++ b/Settings/src/com/android/tv/settings/device/eco/EnergyModesHelper.java
@@ -158,7 +158,7 @@
             R.string.energy_mode_moderate_info,
             R.array.energy_mode_moderate_features,
             R.string.energy_mode_moderate_eco_hint,
-            /* ecoHintIconRes= */ 0,
+            R.drawable.ic_bolt,
             R.array.energy_mode_moderate_baseExemptPackages,
             R.array.energy_mode_moderate_vendorExemptPackages,
             R.integer.energy_mode_moderate_baseAllowedReasons,