Fix sideload for A14 recovery

Based on a tcpdump from adb client the MAX_PAYLOAD size sent was 0x10000
`sideload-host-1686972035:65536`. So we patched accordingly the sideload
with this value. The previous one was too big so it explains the
failure we had.

Ref: https://gitlab.e.foundation/e/devices/eos-installer/-/issues/1