Fix the animation disappeared issue

The animation movie disappears due to the incorrect logic of
commit c11f462.

Change-Id: I9c0eac2bf2950fe20e931da367036ddf38d81f52

Author: cwhuang

cmds/bootanimation/BootAnimation.cpp

@@ -248,13 +248,11 @@ status_t BootAnimation::readyToRun() {
     mFlingerSurface = s;
 
     mAndroidAnimation = true;
-    if ((access(USER_BOOTANIMATION_FILE, R_OK) == 0) ||
-        (access(SYSTEM_BOOTANIMATION_FILE, R_OK) == 0)) {
-        if ((mZip.open(USER_BOOTANIMATION_FILE) != NO_ERROR) ||
-            (mZip.open(SYSTEM_BOOTANIMATION_FILE) != NO_ERROR)) {
-            mAndroidAnimation = false;
-        }
-    }
+    if ((access(USER_BOOTANIMATION_FILE, R_OK) == 0) &&
+            (mZip.open(USER_BOOTANIMATION_FILE) == NO_ERROR) ||
+            (access(SYSTEM_BOOTANIMATION_FILE, R_OK) == 0) &&
+            (mZip.open(SYSTEM_BOOTANIMATION_FILE) == NO_ERROR))
+        mAndroidAnimation = false;
 
     return NO_ERROR;
 }