[PATCH] doc: board: ti: Add optee rng support

[Udit Kumar]

J722S has hw rng, which can be used by OPTEE.
So remove option to use SW TRNG by OPTEE.

Signed-off-by: Udit Kumar <u-kumar1 at ti.com>
---
reference discussion 
https://lore.kernel.org/all/20250313144155.2382316-1-mwalle@kernel.org/

Bootlogs with optee trng 
https://gist.github.com/uditkumarti/5f90210b23e67cd4eb6d06a024031ee8#file-gistfile1-txt-L1970

 doc/board/ti/j722s_evm.rst | 1 -
 1 file changed, 1 deletion(-)

diff --git a/doc/board/ti/j722s_evm.rst b/doc/board/ti/j722s_evm.rst
index e5a1be50c4f..edc29a4f9e4 100644
--- a/doc/board/ti/j722s_evm.rst
+++ b/doc/board/ti/j722s_evm.rst
@@ -74,7 +74,6 @@ Set the variables corresponding to this platform:
  $ export UBOOT_CFG_CORTEXA=j722s_evm_a53_defconfig
  $ export TFA_BOARD=lite
  $ export OPTEE_PLATFORM=k3-am62x
- $ export OPTEE_EXTRA_ARGS="CFG_WITH_SOFTWARE_PRNG=y"
 
 .. j722s_evm_rst_include_start_build_steps
 
-- 
2.34.1