Update kernel to builds 6487909 am: a7798b885b am: 00f39961f6

Change-Id: I8a339934986d9a832738da36b8a9db98c0c8f55d
tree: 08256a51b4bcc3829b08c79296d4eb29dec00976
  1. 5.4-arm64/
  2. 5.4-x86_64/
  3. scripts/
  4. Android.bp
  5. METADATA
  6. OWNERS
  7. TEST_MAPPING