media: tegra-video: Make tegra210_video_formats static

Fix the following sparse warning:

drivers/staging/media/tegra-video/tegra210.c:589:33: warning: symbol 'tegra210_video_formats' was not declared.

The tegra210_video_formats has only call site within tegra210.c
It should be static

Fixes: 423d10a99b30 ("media: tegra: Add Tegra210 Video input driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Samuel Zou <zou_wei@huawei.com>
Acked-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/staging/media/tegra-video/tegra210.c

@@ -586,7 +586,7 @@ enum tegra210_image_format {
 }
 
 /* Tegra210 supported video formats */
-const struct tegra_video_format tegra210_video_formats[] = {
+static const struct tegra_video_format tegra210_video_formats[] = {
 	/* RAW 8 */
 	TEGRA210_VIDEO_FMT(RAW8, 8, SRGGB8_1X8, 1, T_L8, SRGGB8),
 	TEGRA210_VIDEO_FMT(RAW8, 8, SGRBG8_1X8, 1, T_L8, SGRBG8),