ARM: uniphier: rename function names ph1_* to uniphier_*

Eliminate the "ph1"_ prefixes from function names because "uniphier_"
describes the SoC familiy better.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/dram/umc-pxs2.c b/arch/arm/mach-uniphier/dram/umc-pxs2.c
index 50c0238..b4da3d2 100644
--- a/arch/arm/mach-uniphier/dram/umc-pxs2.c
+++ b/arch/arm/mach-uniphier/dram/umc-pxs2.c
@@ -598,7 +598,7 @@
 	writel(0x000000ff, um_base + UMC_MBUS3);
 }
 
-int proxstream2_umc_init(const struct uniphier_board_data *bd)
+int uniphier_pxs2_umc_init(const struct uniphier_board_data *bd)
 {
 	void __iomem *um_base = (void __iomem *)0x5b600000;
 	void __iomem *umc_ch_base = (void __iomem *)0x5b800000;