Update to Ads info text character limit

This CL updates the character limit on the Ads info text description:
ads_description

Bug: 162994923
Test: manual
Change-Id: Id10952a4afea7b95cf3545769a80b3ee64b5c0f1
diff --git a/Settings/res/values/strings.xml b/Settings/res/values/strings.xml
index c8ee894..daab206 100644
--- a/Settings/res/values/strings.xml
+++ b/Settings/res/values/strings.xml
@@ -425,7 +425,7 @@
     </plurals>
     <!-- Preference which shows ads settings. [CHAR LIMIT=50] -->
     <string name="about_ads">Ads</string>
-    <!-- Ads info description outlining the Ads settings options [CHAR LIMIT=50] -->
+    <!-- Ads info description outlining the Ads settings options [CHAR LIMIT=NONE] -->
     <string name="ads_description">Manage your ads settings, such as resetting your advertising ID.</string>
     <!-- Device Info screen. Confirmation that developer settings are enabled [CHAR LIMIT=NONE] -->
     <string name="show_dev_on">You are now a developer!</string>