[Android] Release Notes for Android 1.12.x Release

[srirambv]

• Added Sync v2. (#10203)
• Enabled the "prefetch-privacy-changes" flag by default under brave://flags. (#8319)
• Added support for state level ads delivery. (#9200)
• Added the date of installation to the stats ping. (#10061)
• Added farbling for WebGL API when "Fingerprinting blocking" is set to "strict". (#10214)
• Updated referrer policy to improve privacy and prevent web compatibility issues. (#8696)
• Updated canvas maximum farbling to match balanced farbling. (#11067)
• Updated pre-populated search engine list. (#11089)
• Improved web compatibility by changing behavior of local and session storage in third-party frames to not throw an exception when storage is blocked. (#9578)
• Reduced size and improved performance of the publisher list for Brave Rewards. (#10836)
• Reduced the frequency at which promotions are fetched for rewards. (#9513)
• Fixed issue where "Bat Ads Service" was running when Brave Ads were not enabled. (#9196)
• Fixed crash with Brave Ads when opening a new tab in certain cases. (#9393)
• Fixed issue where "Bat Ledger Service" was running when Brave Rewards was not enabled. (#9526)
• Fixed file-path for cookies as reported on HackerOne by kanytu. (#9818)
• Fixed "Estimated pending rewards" not being refreshed after claiming an ad grant. (#10094)
• Fixed ads state being removed when Brave Ads are disabled. (#10097)
• Fixed clearing URL bar when in edit mode. (#10524)
• Fixed ads not being enabled on clean install when enabling rewards. (#10526)
• Fixed state level ads being shown on versions without support for state level ads delivery. (#10557)
• Disabled ad notifications on wearables. (#9397)
• Upgrade to Chromium Chromium 84.0.4147.125. (#11153)