package/exfatprogs: fix compile failure missing braces around initializer

Add upstream commit to fix host package compile failure.

Fixes:

  http://autobuild.buildroot.net/results/d9c5d17de03f5d0316d5f54f9cd579b79d311d03



  fsck.c:1213:9: error: missing braces around initializer [-Werror=missing-braces]
    struct fsck_user_input ui = {0,};
           ^

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>