kalua: links: firmware_url_get() rewrite crc-checker, exit without errors (dont try again) if EOF is reached
(cherry picked from commit 3c649c434c3a6b9827208e627c7473656798231a)

Signed-off-by: Andi Bräu <ab@andi95.de>
kalua: firmware: fix for a special trunk-version where sysupgrade is b0rken: r34794...r34814
(cherry picked from commit c9875c56b2670f03bafa023f92888d2989c93e8c)

Signed-off-by: Andi Bräu <ab@andi95.de>