ARM: uniphier: drop PH1- prefix from CONFIG options and file names

The current CONFIG names like "CONFIG_ARCH_UNIPHIER_PH1_PRO4" is too
long.  It would not hurt to drop "PH1_" because "UNIPHIER_" already
well specifies the SoC family.  Also, rename files for consistency.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/sc-regs.h b/arch/arm/mach-uniphier/sc-regs.h
index 474b82d..a095589 100644
--- a/arch/arm/mach-uniphier/sc-regs.h
+++ b/arch/arm/mach-uniphier/sc-regs.h
@@ -9,7 +9,7 @@
 #ifndef ARCH_SC_REGS_H
 #define ARCH_SC_REGS_H
 
-#if defined(CONFIG_ARCH_UNIPHIER_PH1_SLD3)
+#if defined(CONFIG_ARCH_UNIPHIER_SLD3)
 #define SC_BASE_ADDR			0xf1840000
 #else
 #define SC_BASE_ADDR			0x61840000