Move Kotlin test helpers into shared directory

Test: Tested locally
BUG: 241286279
FIX: 241286279
Change-Id: I111bd143030a7a3b6dd6e1e0d8df4d9889588b64
diff --git a/packages/SystemUI/tests/src/com/android/systemui/util/mockito/KotlinMockitoHelpers.kt b/packages/SystemUI/tests/utils/src/com/android/systemui/util/mockito/KotlinMockitoHelpers.kt
similarity index 100%
rename from packages/SystemUI/tests/src/com/android/systemui/util/mockito/KotlinMockitoHelpers.kt
rename to packages/SystemUI/tests/utils/src/com/android/systemui/util/mockito/KotlinMockitoHelpers.kt