ARM: tegra: convert boards to use TEGRA_PRAM

Switch boards that use CFG_PRAM to TEGRA_PRAM.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
diff --git a/doc/board/xiaomi/mocha.rst b/doc/board/xiaomi/mocha.rst
index be3e333..230081e 100644
--- a/doc/board/xiaomi/mocha.rst
+++ b/doc/board/xiaomi/mocha.rst
@@ -105,7 +105,7 @@
   CONFIG_TEXT_BASE=0x80A00000
   CONFIG_SKIP_LOWLEVEL_INIT=y
   # CONFIG_OF_BOARD_SETUP is not set
-  CONFIG_TEGRA_SUPPORT_NON_SECURE=y
+  CONFIG_TEGRA_PRAM=y
 
 After the build succeeds, you will obtain the final ``u-boot-dtb.bin``
 file, ready for booting using vendor bootloader's fastboot or which can be