clk: qcom: msm8996: Make symbol 'cpu_msm8996_clks' static

The sparse tool complains as follows:

drivers/clk/qcom/clk-cpu-8996.c:341:19: warning:
 symbol 'cpu_msm8996_clks' was not declared. Should it be static?

This variable is not used outside of clk-cpu-8996.c, so this commit
marks it static.

Fixes: 03e342dc ("clk: qcom: Add CPU clock driver for msm8996")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200714142155.35085-1-weiyongjun1@huawei.comSigned-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/qcom/clk-cpu-8996.c

@@ -338,7 +338,7 @@ static const struct regmap_config cpu_msm8996_regmap_config = {
 	.val_format_endian	= REGMAP_ENDIAN_LITTLE,
 };
 
-struct clk_regmap *cpu_msm8996_clks[] = {
+static struct clk_regmap *cpu_msm8996_clks[] = {
 	&perfcl_pll.clkr,
 	&pwrcl_pll.clkr,
 	&perfcl_alt_pll.clkr,