Fix for LoudnessEnhancer test. Assert failing in float value.

The test was comparing (int)0 with a float, and the resulting
0.0 was failing the test. Replaced ints with floats in 2 tests.

bug: 18595319
Change-Id: I626afac691a5d93dbf52cd0e1c9c894a1c5f2908
diff --git a/tests/tests/media/src/android/media/cts/LoudnessEnhancerTest.java b/tests/tests/media/src/android/media/cts/LoudnessEnhancerTest.java
index 9515c22..be5099e 100644
--- a/tests/tests/media/src/android/media/cts/LoudnessEnhancerTest.java
+++ b/tests/tests/media/src/android/media/cts/LoudnessEnhancerTest.java
@@ -69,9 +69,9 @@
         getLoudnessEnhancer(0);
         try {
             mLE.setTargetGain(0);
-            assertEquals("target gain differs from value set", 0, mLE.getTargetGain());
+            assertEquals("target gain differs from value set", 0.0f, mLE.getTargetGain());
             mLE.setTargetGain(800);
-            assertEquals("target gain differs from value set", 800, mLE.getTargetGain());
+            assertEquals("target gain differs from value set", 800.0f, mLE.getTargetGain());
         } catch (IllegalArgumentException e) {
             fail("target gain illegal argument");
         } catch (UnsupportedOperationException e) {