armv8: ls1043aqds: use configurable clock

Get the clocks from FPGA through I2C, if IFC is disabled.

Signed-off-by: Gong Qianyu <Qianyu.Gong@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/include/configs/ls1043aqds.h b/include/configs/ls1043aqds.h
index a19eaee..520b28c 100644
--- a/include/configs/ls1043aqds.h
+++ b/include/configs/ls1043aqds.h
@@ -29,8 +29,8 @@
 unsigned long get_board_ddr_clk(void);
 #endif
 
-#define CONFIG_SYS_CLK_FREQ		100000000
-#define CONFIG_DDR_CLK_FREQ		100000000
+#define CONFIG_SYS_CLK_FREQ		get_board_sys_clk()
+#define CONFIG_DDR_CLK_FREQ		get_board_ddr_clk()
 
 #define CONFIG_SKIP_LOWLEVEL_INIT
 
@@ -225,6 +225,7 @@
 
 #if defined(CONFIG_QSPI_BOOT) || defined(CONFIG_SD_BOOT_QSPI)
 #define CONFIG_QIXIS_I2C_ACCESS
+#define CONFIG_SYS_I2C_EARLY_INIT
 #define CONFIG_SYS_NO_FLASH
 #endif