ARM: tegra: enable CONFIG_SYS_NONCACHED_MEMORY everywhere

Now that we have solved the problems that prevented this feature from
being enabled, enable it everywhere.

Signed-off-by: Stephen Warren <swarren@nvidia.com>

include/configs/tegra-common-post.h

@@ -19,9 +19,7 @@
 #define CONFIG_SYS_MALLOC_LEN		(4 << 20)	/* 4MB  */
 #endif
 
-#ifndef CONFIG_ARM64
 #define CONFIG_SYS_NONCACHED_MEMORY	(1 << 20)	/* 1 MiB */
-#endif
 
 #ifndef CONFIG_SPL_BUILD
 #define BOOT_TARGET_DEVICES(func) \