rockchip: boot0: update CONFIG_ROCKCHIP_SPL_RESERVE_IRAM for SPL only

The CONFIG_ROCKCHIP_SPL_RESERVE_IRAM is for SPL only, add
condition to limit it not affect TPL.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/include/asm/arch-rockchip/boot0.h b/arch/arm/include/asm/arch-rockchip/boot0.h
index 9ea4708..0c375e5 100644
--- a/arch/arm/include/asm/arch-rockchip/boot0.h
+++ b/arch/arm/include/asm/arch-rockchip/boot0.h
@@ -54,6 +54,7 @@
 	ARM_VECTORS
 #endif
 
-#if defined(CONFIG_SPL_BUILD) && (CONFIG_ROCKCHIP_SPL_RESERVE_IRAM > 0)
+#if !defined(CONFIG_TPL_BUILD) && defined(CONFIG_SPL_BUILD) && \
+	(CONFIG_ROCKCHIP_SPL_RESERVE_IRAM > 0)
 	.space CONFIG_ROCKCHIP_SPL_RESERVE_IRAM	/* space for the ATF data */
 #endif