ARM: uniphier: de-couple SC macros into base address and offset

The SC_* macros represent the address of SysCtrl registers.
For a planned new SoC, its base address will be changed.

Turn the SC_* macros into the offset from the base address.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/clk/clk-ld20.c b/arch/arm/mach-uniphier/clk/clk-ld20.c
index 02a14dd..397b2d7 100644
--- a/arch/arm/mach-uniphier/clk/clk-ld20.c
+++ b/arch/arm/mach-uniphier/clk/clk-ld20.c
@@ -15,13 +15,13 @@
 {
 	u32 tmp;
 
-	tmp = readl(SC_RSTCTRL6);
+	tmp = readl(sc_base + SC_RSTCTRL6);
 	tmp |= BIT(8);			/* Mali */
-	writel(tmp, SC_RSTCTRL6);
+	writel(tmp, sc_base + SC_RSTCTRL6);
 
-	tmp = readl(SC_CLKCTRL6);
+	tmp = readl(sc_base + SC_CLKCTRL6);
 	tmp |= BIT(8);			/* Mali */
-	writel(tmp, SC_CLKCTRL6);
+	writel(tmp, sc_base + SC_CLKCTRL6);
 
 	/* TODO: use "mmc-pwrseq-emmc" */
 	writel(1, SDCTRL_EMMC_HW_RESET);