clk: tegra: Fix sparse warnings for functions not declared as static

clk: tegra: Fix sparse warnings for functions not declared as static

Sparse reports the following warnings for functions in clk-tegra210.c
that should be declared as static:

drivers/clk/tegra/clk-tegra210.c:460:6: warning: symbol
 'tegra210_pllcx_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:485:6: warning: symbol
 '_pllc_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:490:6: warning: symbol
 '_pllc2_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:495:6: warning: symbol
 '_pllc3_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:500:6: warning: symbol
 '_plla1_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:510:6: warning: symbol
 'tegra210_plla_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:562:6: warning: symbol
 'tegra210_plld_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:701:6: warning: symbol
 'tegra210_plld2_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:709:6: warning: symbol
 'tegra210_plldp_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:722:6: warning: symbol
 'tegra210_pllc4_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:731:6: warning: symbol
 'tegra210_pllre_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:844:6: warning: symbol
 'tegra210_pllx_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:904:6: warning: symbol
 'tegra210_pllmb_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:963:6: warning: symbol
 'tegra210_pllp_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:1025:6: warning: symbol
 'tegra210_pllu_set_defaults' was not declared. Should it be static?
drivers/clk/tegra/clk-tegra210.c:1215:15: warning: symbol
 'tegra210_clk_adjust_vco_min' was not declared. Should it be static?

Fix this by declaring the above as static.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>