src/install: fix building with --disable-network
src/install: fix building with --disable-network

print_slot_hash_table() is only used within the network handling code,
thus when having this disabled this static function is unused and will
produce a warning that is fatal when compiling with -Werror.

Signed-off-by: Enrico Joerns <a2e5f936c390f36494e46e71bcfbe365bb1e8c49@pengutronix.de>

ejoerns/rauc,ejoerns/rauc,rauc/rauc,jluebbe/rauc,jluebbe/rauc,jluebbe/rauc,ejoerns/rauc,rauc/rauc,rauc/rauc