rockchip: px30: fix CFG_IRAM_BASE

The IRAM on PX30 (or Int_MEM in datasheet) starts at 0xff0e0000 and not
0xff020000 as rightfully stated in the FIXME comment.

Let's fix it so that BROM_BOOTSOURCE_ID_ADDR points to the correct
address for PX30.

Fixes: 46281a76bee3 ("rockchip: add core px30 headers")
Cc: Quentin Schulz <foss+uboot@0leil.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
diff --git a/include/configs/px30_common.h b/include/configs/px30_common.h
index 3f1595c..c0896e5 100644
--- a/include/configs/px30_common.h
+++ b/include/configs/px30_common.h
@@ -8,8 +8,7 @@
 
 #include "rockchip-common.h"
 
-/* FIXME: ff020000 is pmu_mem (10k), while ff0e0000 is regular int_mem */
-#define CFG_IRAM_BASE		0xff020000
+#define CFG_IRAM_BASE		0xff0e0000
 
 #define GICD_BASE			0xff131000
 #define GICC_BASE			0xff132000