tjGetScaledSize() would never be able to accommodate scaling factors > 1, so replace it with a function that returns a list of fractional scaling factors that TurboJPEG supports.

git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@477 632fc199-4ca6-4c93-a231-07263d6284db

turbojpeg-mapfile.jni

@@ -25,7 +25,7 @@ TURBOJPEG_1.1
 TURBOJPEG_1.2
 {
 	global:
-		tjGetScaledSize;
+		tjGetScalingFactors;
 		tjInitTransform;
 		tjTransform;
 		Java_org_libjpegturbo_turbojpeg_TJ_bufSize;