exfat-utils: rename to exfatprogs as upstream has done

Based on kernel.org feedback, this has been renamed for consistency
between the other filesystem progs.

Signed-off-by: Rosen Penev <redacted>

diff --git a/utils/exfat-utils/Makefile b/utils/exfatprogs/Makefile
similarity index 100%
rename from utils/exfat-utils/Makefile
rename to utils/exfatprogs/Makefile