media: staging: tegra-vde: Factor out H.264 code

Factor out H.264 hardware programming code into separate source file in a
preparation to support V4L API by the Tegra video decoder driver.

Signed-off-by: Dmitry Osipenko <[email protected]>

Author: digetx

drivers/staging/media/tegra-vde/Makefile

@@ -1,3 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0
-tegra-vde-y := vde.o iommu.o dmabuf-cache.o
+tegra-vde-y := vde.o iommu.o dmabuf-cache.o h264.o
 obj-$(CONFIG_TEGRA_VDE)	+= tegra-vde.o