media: admin-guide: add SPI cards to platform drivers

The SPI cards are also under the concept of "platform" drivers
as defined at the section introduction.

So, add a SPI card list there.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2020-04-18 11:13:58 +02:00
commit a70559d37a