package/qtopia4: fix GPL download URL

Patch by Will Newton <will.newton@gmail.com>

package/qtopia4/qtopia4.mk

@@ -37,7 +37,7 @@ QTOPIA4_SOURCE:=qt-embedded-linux-commercial-src-$(QTOPIA4_VERSION).tar.bz2
 QTOPIA4_TARGET_DIR:=$(BUILD_DIR)/qt-embedded-linux-commercial-src-$(QTOPIA4_VERSION)
 QTOPIA4_CONFIGURE+= -no-sql-oci -no-sql-tds -no-sql-db2
 else # Good, good, we are free:
-QTOPIA4_SITE=ftp://ftp.trolltech.com/qt/source
+QTOPIA4_SITE=http://get.qtsoftware.com/qt/source
 QTOPIA4_SOURCE:=qt-embedded-linux-opensource-src-$(QTOPIA4_VERSION).tar.bz2
 QTOPIA4_TARGET_DIR:=$(BUILD_DIR)/qt-embedded-linux-opensource-src-$(QTOPIA4_VERSION)
 ifeq ($(BR2_PACKAGE_QTOPIA4_LICENSE_APPROVED),y)