PCI: brcmstb: Add bcm7211, bcm7216, bcm7445, bcm7278 to match list

Now that the support is in place with previous commits, we add several
chips that use the BrcmSTB driver.

Link: https://lore.kernel.org/r/20200911175232.19016-11-james.quinlan@broadcom.com


Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>