[console] return wrong console logsize
[console] return wrong console logsize

get_config_console_logsize want console.buffer_size not c->autodev

Signed-off-by: duguhaotian <6cc0ed4aed7efb21f4959803e7cf974793564e7f@gmail.com>

hallyn/lxc,hallyn/lxc,thmo/lxc,ss1h2a3tw/lxc,caglar10ur/lxc,thmo/lxc,hallyn/lxc,caglar10ur/lxc,ss1h2a3tw/lxc,caglar10ur/lxc,thmo/lxc,ss1h2a3tw/lxc