soc: sunxi: sram: add entry for a523

The A523 has two Ethernet controllers. So in the system controller
address space, there are two registers for Ethernet clock delays,
one for each controller.

Add a new entry for the A523 system controller that allows access to
the second register.

Acked-by: Jernej Skrabec <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Chen-Yu Tsai <[e-mail]>

drivers/soc/sunxi/sunxi_sram.c

···
 	.has_ths_offset = true,
 };
 
+static const struct sunxi_sramc_variant sun55i_a523_sramc_variant = {
+	.num_emac_clocks = 2,
+};
+
 #define SUNXI_SRAM_THS_OFFSET_REG	0x0
 #define SUNXI_SRAM_EMAC_CLOCK_REG	0x30
 #define SUNXI_SYS_LDO_CTRL_REG		0x150
···
 	{
 		.compatible = "allwinner,sun50i-h616-system-control",
 		.data = &sun50i_h616_sramc_variant,
+	},
+	{
+		.compatible = "allwinner,sun55i-a523-system-control",
+		.data = &sun55i_a523_sramc_variant,
 	},
 	{ },
 };