[RESEND PATCH v4 20/21] staging: media: tegra-video: add H/V flip controls

Tegra20 can do horizontal and vertical image flip, but Tegra210 cannot (either the hardware, or this driver). In preparation to adding Tegra20 support, add a flag in struct tegra_vi_soc so the generic vi.c code knows whether the flip controls should be added or not. Also provide a generic

[PATCH v4 20/21] staging: media: tegra-video: add H/V flip controls

Tegra20 can do horizontal and vertical image flip, but Tegra210 cannot (either the hardware, or this driver). In preparation to adding Tegra20 support, add a flag in struct tegra_vi_soc so the generic vi.c code knows whether the flip controls should be added or not. Also provide a generic