ARM: UniPhier: select CONFIG_SPL

Now UniPhier platform is only supported with SPL.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2b0d2c9..5eb1d03 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -800,6 +800,7 @@
 	bool "Panasonic UniPhier platform"
 	select CPU_V7
 	select SUPPORT_SPL
+	select SPL
 	select OF_CONTROL if !SPL_BUILD
 
 endchoice
diff --git a/configs/ph1_ld4_defconfig b/configs/ph1_ld4_defconfig
index 3155340..2e9dd00 100644
--- a/configs/ph1_ld4_defconfig
+++ b/configs/ph1_ld4_defconfig
@@ -1,4 +1,3 @@
-CONFIG_SPL=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 +S:CONFIG_ARM=y
diff --git a/configs/ph1_pro4_defconfig b/configs/ph1_pro4_defconfig
index 7ea4e6e..5dca64b 100644
--- a/configs/ph1_pro4_defconfig
+++ b/configs/ph1_pro4_defconfig
@@ -1,4 +1,3 @@
-CONFIG_SPL=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 +S:CONFIG_ARM=y
diff --git a/configs/ph1_sld8_defconfig b/configs/ph1_sld8_defconfig
index ddf210c..2a6e334 100644
--- a/configs/ph1_sld8_defconfig
+++ b/configs/ph1_sld8_defconfig
@@ -1,4 +1,3 @@
-CONFIG_SPL=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 +S:CONFIG_ARM=y