Enable memory credentials

Signed-off-by: Paulo Gomes <paulo.gomes@weave.works>

Author: Paulo Gomes

hack/static.sh

@@ -99,6 +99,7 @@ function build_libgit2(){
         -DCMAKE_POSITION_INDEPENDENT_CODE:BOOL=ON \
         -DCMAKE_C_FLAGS=-fPIC \
         -DUSE_SSH:BOOL=ON \
+        -DHAVE_LIBSSH2_MEMORY_CREDENTIALS:BOOL=ON \
         -DDEPRECATE_HARD:BOOL=ON \
         -DUSE_BUNDLED_ZLIB:BOOL=ON \
         -DUSE_HTTPS:STRING=OpenSSL \