board: STiH410-B2260: fix sdram size

32MB are reserved for TrustZone purpose

Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
diff --git a/include/configs/stih410-b2260.h b/include/configs/stih410-b2260.h
index 115488c..fc11f3c 100644
--- a/include/configs/stih410-b2260.h
+++ b/include/configs/stih410-b2260.h
@@ -12,7 +12,7 @@
 #define CONFIG_NR_DRAM_BANKS		1
 #define PHYS_SDRAM_1			0x40000000
 #define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
-#define PHYS_SDRAM_1_SIZE		0x3FE00000
+#define PHYS_SDRAM_1_SIZE		0x3E000000
 #define CONFIG_SYS_TEXT_BASE		0x7D600000
 #define CONFIG_SYS_LOAD_ADDR		PHYS_SDRAM_1	/* default load addr */