Fix compiler warnings in frameworks/av/media/ndk.

Bug: 26936282
Change-Id: I86b32ef5a7e6b18974cbe4a885291acec2b2eb5f
diff --git a/media/ndk/NdkMediaDrm.cpp b/media/ndk/NdkMediaDrm.cpp
index ea47d57..e98b124 100644
--- a/media/ndk/NdkMediaDrm.cpp
+++ b/media/ndk/NdkMediaDrm.cpp
@@ -629,9 +629,9 @@
 
     Vector<uint8_t> outputVec;
     if (encrypt) {
-        status_t status = mObj->mDrm->encrypt(*iter, keyIdVec, inputVec, ivVec, outputVec);
+        status = mObj->mDrm->encrypt(*iter, keyIdVec, inputVec, ivVec, outputVec);
     } else {
-        status_t status = mObj->mDrm->decrypt(*iter, keyIdVec, inputVec, ivVec, outputVec);
+        status = mObj->mDrm->decrypt(*iter, keyIdVec, inputVec, ivVec, outputVec);
     }
     if (status == OK) {
         memcpy(output, outputVec.array(), outputVec.size());