ARM: tegra: enable filesystem writing

Writing to files is a useful feature in general, so enable it everywhere.
The primary purpose is to make DFU useful on filesystems in addition to
raw devices.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/include/configs/tegra-common.h b/include/configs/tegra-common.h
index b886c64..1c469d0 100644
--- a/include/configs/tegra-common.h
+++ b/include/configs/tegra-common.h
@@ -140,6 +140,8 @@
 
 #ifndef CONFIG_SPL_BUILD
 #include <config_distro_defaults.h>
+#define CONFIG_CMD_EXT4_WRITE
+#define CONFIG_FAT_WRITE
 #endif
 
 #endif /* _TEGRA_COMMON_H_ */