Fix typo in logs

Change-Id: I889e31ea3a45a3d8d34fdfb54ebc3947de51d2be
diff --git a/media/libmedia/AudioSystem.cpp b/media/libmedia/AudioSystem.cpp
index a6dedec..fb19357 100644
--- a/media/libmedia/AudioSystem.cpp
+++ b/media/libmedia/AudioSystem.cpp
@@ -453,7 +453,7 @@
         } break;
     case OUTPUT_CLOSED: {
         if (gOutputs.indexOfKey(ioHandle) < 0) {
-            ALOGW("ioConfigChanged() closing unknow output! %d", ioHandle);
+            ALOGW("ioConfigChanged() closing unknown output! %d", ioHandle);
             break;
         }
         ALOGV("ioConfigChanged() output %d closed", ioHandle);
@@ -464,7 +464,7 @@
     case OUTPUT_CONFIG_CHANGED: {
         int index = gOutputs.indexOfKey(ioHandle);
         if (index < 0) {
-            ALOGW("ioConfigChanged() modifying unknow output! %d", ioHandle);
+            ALOGW("ioConfigChanged() modifying unknown output! %d", ioHandle);
             break;
         }
         if (param2 == NULL) break;