mmc: renesas_sdhi: use custom mask for TMIO_MASK_ALL

commit 9f12cac1 upstream.

Populate the new member for custom mask values to make sure this value
is applied whenever needed. Also, rename the define holding the value
because this is not only about initialization anymore.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20210304092903.8534-1-wsa+renesas@sang-engineering.com


Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
[geert: Backport to v5.10.199]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>