msm: clock-local: Make freq_tbl pointer non-const

There is a need to change freq_tbl at runtime for targets using a
similar clock driver, therefore make the freq_tbl not const to
support such requirement.

Signed-off-by: Tianyi Gou <tgou@codeaurora.org>
diff --git a/arch/arm/mach-msm/clock-8960.c b/arch/arm/mach-msm/clock-8960.c
index ce64938..05c3b23 100644
--- a/arch/arm/mach-msm/clock-8960.c
+++ b/arch/arm/mach-msm/clock-8960.c
@@ -4873,9 +4873,7 @@
 
 	memcpy(msm_clocks_8960, msm_clocks_8960_v1, sizeof(msm_clocks_8960_v1));
 	if (SOCINFO_VERSION_MAJOR(socinfo_get_version()) >= 2) {
-		struct clk_freq_tbl **ptr =
-			(struct clk_freq_tbl **)&gfx3d_clk.freq_tbl;
-		*ptr = clk_tbl_gfx3d_v2;
+		gfx3d_clk.freq_tbl = clk_tbl_gfx3d_v2;
 		memcpy(msm_clocks_8960 + ARRAY_SIZE(msm_clocks_8960_v1),
 				msm_clocks_8960_v2, sizeof(msm_clocks_8960_v2));
 		num_lookups = ARRAY_SIZE(msm_clocks_8960);