Add StarFive JH8100 dwmac support. The JH8100 dwmac shares the same driver code as the JH7110 dwmac and has only one reset signal. Please refer to below: JH8100: reset-names = "stmmaceth"; JH7110: reset-names = "stmmaceth", "ahb"; JH7100: reset-names = "ahb"; Example usage of JH8100 in the device tree: gmac0: ethernet@16030000 { compatible = "starfive,jh8100-dwmac", "starfive,jh7110-dwmac", "snps,dwmac-5.20"; ... }; Signed-off-by: Tan Chun Hau <chunhau.tan@starfivetech.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20240403100549.78719-2-chunhau.tan@starfivetech.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>