clk: sirf: Constify parent names in clock init data

The array of parent names can be made as array of const pointers to
const strings.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
diff --git a/drivers/clk/sirf/clk-common.c b/drivers/clk/sirf/clk-common.c
index 37af51c..e9cf573 100644
--- a/drivers/clk/sirf/clk-common.c
+++ b/drivers/clk/sirf/clk-common.c
@@ -188,7 +188,7 @@
 	.set_rate = pll_clk_set_rate,
 };
 
-static const char *pll_clk_parents[] = {
+static const char * const pll_clk_parents[] = {
 	"osc",
 };
 
@@ -284,7 +284,7 @@
  * clock domains - cpu, mem, sys/io, dsp, gfx
  */
 
-static const char *dmn_clk_parents[] = {
+static const char * const dmn_clk_parents[] = {
 	"rtc",
 	"osc",
 	"pll1",
@@ -673,7 +673,7 @@
 	clkc_writel(val, reg);
 }
 
-static const char *std_clk_io_parents[] = {
+static const char * const std_clk_io_parents[] = {
 	"io",
 };
 
@@ -949,7 +949,7 @@
 	},
 };
 
-static const char *std_clk_dsp_parents[] = {
+static const char * const std_clk_dsp_parents[] = {
 	"dsp",
 };
 
@@ -981,7 +981,7 @@
 	},
 };
 
-static const char *std_clk_sys_parents[] = {
+static const char * const std_clk_sys_parents[] = {
 	"sys",
 };
 
@@ -999,7 +999,7 @@
 	},
 };
 
-static const char *std_clk_usb_parents[] = {
+static const char * const std_clk_usb_parents[] = {
 	"usb_pll",
 };