Merge "Double max allowed shards" into main

    <option name="test-suite-tag" value="apct" />

    <option name="test-suite-tag" value="framework-base-presubmit" />

    <option name="test-tag" value="SystemUITests" />

    <!-- enable more shards (go/ajur-max-shard) -->

    <option name="ajur-max-shard" value="8" />

    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >

        <option name="package" value="com.android.systemui.tests" />

        <option name="runner" value="android.testing.TestableInstrumentation" />