ARM: UniPhier: add PH1-sLD3 SoC support

The init code for UMC (Unified Memory Controller) and PLL has not
been mainlined yet, but U-boot proper should work.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/doc/README.uniphier b/doc/README.uniphier
index 4902533..4dacc9c 100644
--- a/doc/README.uniphier
+++ b/doc/README.uniphier
@@ -28,14 +28,18 @@
 Compile the source
 ------------------
 
-PH1-Pro4:
-    $ make ph1_pro4_defconfig
+PH1-sLD3:
+    $ make ph1_sld3_defconfig
     $ make CROSS_COMPILE=arm-linux-gnueabi-
 
 PH1-LD4:
     $ make ph1_ld4_defconfig
     $ make CROSS_COMPILE=arm-linux-gnueabi-
 
+PH1-Pro4:
+    $ make ph1_pro4_defconfig
+    $ make CROSS_COMPILE=arm-linux-gnueabi-
+
 PH1-sLD8:
     $ make ph1_sld8_defconfig
     $ make CROSS_COMPILE=arm-linux-gnueabi-