PCI: brcmstb: Don't conflate the reset rescal with PHY ctrl

PCI: brcmstb: Don't conflate the reset rescal with PHY ctrl

Add a "has_phy" field indicating that the internal PHY has SW control
that requires configuration.  Some previous chips only required the
firing of the "rescal" reset controller.

This change requires us to give the 7216 SoC its own cfg_data structure.

Link: https://lore.kernel.org/linux-pci/20240815225731.40276-10-james.quinlan@broadcom.com
Signed-off-by: Jim Quinlan <james.quinlan@broadcom.com>
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Stanimir Varbanov <svarbanov@suse.de>