staging: brcm80211: absorb brcmf_sdcard_attach into brcmf_sdio_probe

Increase readability of brcmfmac

Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --cc drivers/staging/brcm80211/brcmfmac/bcmsdh.c
Simple merge

diff --cc drivers/staging/brcm80211/brcmfmac/sdio_host.h
Simple merge