IME to home tests should run only in 0 degrees

The test is flaky on 90 degrees at the moment

Test: atest FlickerTests:CloseImeWindowToHomeTest
Bug: 162923992
Change-Id: I172f7727fa5be5f2e4806b850d94bc47850929ef

tests/FlickerTests/src/com/android/server/wm/flicker/ime/CloseImeWindowToHomeTest.kt

@@ -162,7 +162,8 @@ class CloseImeWindowToHomeTest(private val testSpec: FlickerTestParameter) {
         @JvmStatic
         fun getParams(): Collection<FlickerTestParameter> {
             return FlickerTestParameterFactory.getInstance()
-                .getConfigNonRotationTests(repetitions = 5)
+                .getConfigNonRotationTests(repetitions = 5,
+                    supportedRotations = listOf(Surface.ROTATION_0))
         }
     }
 }