build: specify elasto library alongside LIBS
build: specify elasto library alongside LIBS

libelasto_file is currently specified with LDFLAGS when configured
--with-elasto. However, the libraries should be listed at the end of
the command, so use LIBS instead which has this property.

Signed-off-by: David Disseldorp <589a549dc9f982d9f46aeeb82a09ab6d87ccf1d8@suse.de>

evansus/istgt,evansus/istgt,evansus/istgt