clk: uniphier: rework UniPhier clk driver

The initial design of the UniPhier clk driver for U-Boot was not
very nice.  Here is a re-work to sync it with Linux's clk and reset
drivers, maximizing the code reuse from Linux's clk data.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/drivers/clk/uniphier/Makefile b/drivers/clk/uniphier/Makefile
index a3168f9..ed623aa 100644
--- a/drivers/clk/uniphier/Makefile
+++ b/drivers/clk/uniphier/Makefile
@@ -1,3 +1,2 @@
-obj-y					+= clk-uniphier-core.o
-
-obj-$(CONFIG_CLK_UNIPHIER_MIO)		+= clk-uniphier-mio.o
+obj-y	+= clk-uniphier-core.o
+obj-y	+= clk-uniphier-mio.o