AOSP/Email - Bumped the targetSdkVersion to 24 (maximum version) across Email and UnifiedEmail with minimal changes.

Bug: 119500483

Test: manual - Ran the following CTS tests on Pixel phone. Tested the email UI.

$ make -j 40
  -rw-r--r-- 1 rtenneti primarygroup 6836038 Dec 14 14:04 out/target/product/marlin/system/app/Email/Email.apk

$ make UnifiedEmailTests -j
  -rw-r--r-- 1 rtenneti primarygroup 303511 Dec 14 17:50 out/target/product/marlin/data/app/UnifiedEmailTests/UnifiedEmailTests.apk

$ make EmailTests -j
  -rw-r--r-- 1 rtenneti primarygroup 365023 Dec 14 17:51 out/target/product/marlin/testcases/EmailTests/EmailTests.apk

$ adb install -r out/target/product/marlin/system/app/Email/Email.apk
$ adb install -r out/target/product/marlin/data/app/UnifiedEmailTests/UnifiedEmailTests.apk
$ adb install -r out/target/product/marlin/testcases/EmailTests/EmailTests.apk
$ adb shell am instrument -w com.android.email.tests
  Time: 3.243
  OK (157 tests)

Change-Id: I9647cc7ca732e638bbb48dab65c04c2819dd207b
2 files changed