add firmware 'brcmfmac43362-sdio.bin'

Signed-off-by: Stephan Raue <stephan@openelec.tv>
update firmware 'iwlwifi-3160-8.ucode'

Signed-off-by: Stephan Raue <stephan@openelec.tv>
update firmware 'iwlwifi-7260-8.ucode'

Signed-off-by: Stephan Raue <stephan@openelec.tv>