qt-webkit-kiosk: bump to version 1.99.7-4-ga7720e5

This brings localstorage support in the app, plus a fix for the build
issue logged at [1].

[1] http://autobuild.buildroot.net/results/f29fa8ef055fe0d41db5944974272530d02ecd29/

Signed-off-by: Jérôme Oufella <jerome.oufella@savoirfairelinux.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/qt-webkit-kiosk/qt-webkit-kiosk.hash

@@ -1,2 +1,2 @@
 # Locally computed
-sha256 ec05f5bcb202265202a6f3ff74372516ce9beb82206ff67ca2b1b6fcb586ecd2  qt-webkit-kiosk-34efddb0bf0c36c8652f90dcd001db123f286f04.tar.gz
+sha256 07fbc3f5053f55e4ef6566a15b42b74895314b48a0dfd46f0984f96f0fbb3e02  qt-webkit-kiosk-a7720e50f2bd70aad99e0b465f5c4a57aca48127.tar.gz

package/qt-webkit-kiosk/qt-webkit-kiosk.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-QT_WEBKIT_KIOSK_VERSION = 34efddb0bf0c36c8652f90dcd001db123f286f04
+QT_WEBKIT_KIOSK_VERSION = a7720e50f2bd70aad99e0b465f5c4a57aca48127
 QT_WEBKIT_KIOSK_SITE = https://github.com/sergey-dryabzhinsky/qt-webkit-kiosk.git
 QT_WEBKIT_KIOSK_SITE_METHOD = git
 QT_WEBKIT_KIOSK_DEPENDENCIES = qt5webkit qt5multimedia