uart0-helloworld-sdboot: add support for Allwinner A83T

The Allwinner A83T is an older SoC, with eight Arm Cortex-A7 cores, but
otherwise being very similar to the "classic" SoCs like the A20.

Add support for this SoC, by simply adding its SoC ID and the respective
SoC data into our SoC table.

Tested on a Cubietruck Plus.

Signed-off-by: Andre Przywara <osp@andrep.de>

uart0-helloworld-sdboot.c

@@ -195,6 +195,8 @@ static const struct soc_info {
 		SUNXI_UART0_BASE, SUNXI_GPB(22), MUX_2 },
 	{ 0x1663, "F1C100s", SUNXI_PIO_BASE, AW_CCM_BASE, SRAM_A1_ADDR_0,
 		SUNIV_UART0_BASE, SUNXI_GPE(0), MUX_5, FLAG_UART_ON_APB1 },
+	{ 0x1673, "A83T", SUNXI_PIO_BASE, AW_CCM_BASE, SRAM_A1_ADDR_0,
+		SUNXI_UART0_BASE, SUNXI_GPB(9), MUX_2 },
 	{ 0x1689, "A64", SUNXI_PIO_BASE, AW_CCM_BASE, SRAM_A1_ADDR_10000,
 		SUNXI_UART0_BASE, SUNXI_GPB(8), MUX_4 },
 	{ 0x1680, "H2+", SUNXI_PIO_BASE, AW_CCM_BASE, SRAM_A1_ADDR_0,