staging: most: net: Fix some kernel-doc formatting issues

staging: most: net: Fix some kernel-doc formatting issues

Fixes the following W=1 kernel build warning(s):

 drivers/staging/most/net/net.c:548: warning: Function parameter or member 'iface' not described in 'on_netinfo'
 drivers/staging/most/net/net.c:548: warning: Function parameter or member 'link_stat' not described in 'on_netinfo'
 drivers/staging/most/net/net.c:548: warning: Function parameter or member 'mac_addr' not described in 'on_netinfo'

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Cc: linux-staging@lists.linux.dev
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210414181129.1628598-27-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>