Update XCSoar to 6.7.7 (96)

metadata/org.xcsoar.txt

@@ -51,6 +51,15 @@ Build:6.7.6,95
         for n in 1 2 3; do make TARGET=ANDROIDFAT DEBUG=n TESTING=n -j4 output/ANDROIDFAT/bin/XCSoar-release-unsigned.apk && \
         break; done
 
+Build:6.7.7,96
+    commit=v6.7.7
+    subdir=android
+    submodules=yes
+    output=../output/ANDROIDFAT/bin/XCSoar-release-unsigned.apk
+    build=cd .. && \
+        for n in 1 2 3; do make TARGET=ANDROIDFAT DEBUG=n TESTING=n -j4 output/ANDROIDFAT/bin/XCSoar-release-unsigned.apk && \
+        break; done
+
 Maintainer Notes:
 The makefile setup is not perfect, so we need to run it a few times to get it to succeed.
 .