Android: Fix a few java warnings. Upgrade ndk platform to 2.0 (don't support 1.6 anymore).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30293 a1c6a512-1295-4272-9138-f99709370657

android/AndroidManifest.xml

@@ -80,7 +80,7 @@
 	
 	</application>
 
-	<uses-sdk android:minSdkVersion="4" />
+	<uses-sdk android:minSdkVersion="11" />
 	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
 	<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
 </manifest> 

android/src/org/rockbox/RockboxPCM.java

@@ -139,14 +139,12 @@ public class RockboxPCM extends AudioTrack
         return (bytes/4);
     }
 
-    @SuppressWarnings("unused")
     private int frames2bytes(int frames) 
     {
         /* 1 frame is 2 samples, 1 sample is 2 bytes */
         return (frames*4);
     }
 
-    @SuppressWarnings("unused")
     private void play_pause(boolean pause) 
     {
         RockboxService service = RockboxService.get_instance();
@@ -204,7 +202,6 @@ public class RockboxPCM extends AudioTrack
         return super.setStereoVolume(leftVolume, rightVolume);
     }
 
-    @SuppressWarnings("unused")
     private void set_volume(int volume)
     {
         Logger.d("java:set_volume("+volume+")");

android/src/org/rockbox/monitors/HeadphoneMonitor.java

@@ -28,8 +28,6 @@ import android.content.IntentFilter;
 
 public class HeadphoneMonitor extends BroadcastReceiver
 {
-    @SuppressWarnings("unused")
-
     public HeadphoneMonitor(Context c)
     {
         IntentFilter hpFilter = new IntentFilter(Intent.ACTION_HEADSET_PLUG);

tools/configure

@@ -663,9 +663,9 @@ androidcc () {
     prefixtools $gcctarget
     GCCOPTS=`echo $CCOPTS | sed -e s/-ffreestanding// -e s/-nostdlib// -e s/-Wundef//`
     GCCOPTS="$GCCOPTS -ffunction-sections -march=armv5te -mtune=xscale -msoft-float -fomit-frame-pointer \
-		--sysroot=$ANDROID_NDK_PATH/platforms/android-4/arch-arm"
+		--sysroot=$ANDROID_NDK_PATH/platforms/android-5/arch-arm"
     GLOBAL_LDOPTS="$GLOBAL_LDOPTS -nostdlib -lc -Wl,--no-undefined -Wl,--gc-sections -Wl,-z,noexecstack \
-		--sysroot=$ANDROID_NDK_PATH/platforms/android-4/arch-arm"
+		--sysroot=$ANDROID_NDK_PATH/platforms/android-5/arch-arm"
     LDOPTS="$LDOPTS -shared -nostdlib -ldl -llog"
     endian="little"
     SHARED_LDFLAG="-shared"