Conditional wolfcrypt-only wc_RNG_GenerateBlock for MSVC

[gojimmypi]

Description

Adds alternative syntax for wc_RNG_GenerateBlock when NOT_COMPILED_IN is desired for Microsoft VC.

When compiling wolfBoot on Visual Studio 2022, the wolfcrypt-only mode encounters an error for the not-compiled-in wc_RNG_GenerateBlock() as MSVC apparently does not like the macro expansion syntax and instead gives an unintuitive error for example here:

ret = wc_RNG_GenerateBlock(rng, key->k, ED25519_KEY_SIZE);

claiming this error:

Severity	Code	Description	Project	File	Line	Suppression State	Details
Error	C2059	syntax error: '{'	wolfcrypt	C:\workspace\wolfBoot-gojimmypi\lib\wolfssl\wolfcrypt\src\ed25519.c	323		

Fixes zd# n/a

Testing

Manually tested in wolfBoot. only basic checks here:

./autogen.sh
./configure
make
make check  

Checklist

• added tests
• updated/added doxygen
• updated appropriate READMEs
• Updated manual and documentation

[gojimmypi]

Jenkins retest this please.

For (unexplained) SHA failure:

SHA      test failed!
 error L=4416 i=0
 [fiducial line numbers: 10440 30097 49877 62828]

Note the Windows 6244 ACVP test failure may well be related to the RNG update herein; See #9204 that changed test order.