Fix GCC warnings

[embhorn]

Description

Customer reported warnings with strict rules enabled

Fixes zd20626

Testing

Tool confirmed

Checklist

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

[Copilot]

Pull Request Overview

This PR fixes GCC compiler warnings when strict rules are enabled, addressing customer-reported issues in ticket zd20626.

• Added proper const qualifier to function parameter to fix const-correctness warnings
• Implemented bounds checking for indent parameters to prevent format truncation warnings
• Fixed code structure issues including unreachable code and duplicated branch warnings
• Added pragma directives to suppress intentional duplicated branch warning

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
wolfcrypt/src/evp.c	Added const qualifier to src parameter in EvpCipherAesGCM function
src/x509.c	Added MAX_INDENT constant and bounds checking for indent parameters across multiple print functions
src/tls.c	Fixed unreachable code by adding proper null check and control flow for TLSX_Find result
src/ssl_bn.c	Added GCC pragma to suppress intentional duplicated branches warning
src/pk.c	Added bounds checking for indent parameter to prevent format truncation
src/internal.c	Removed duplicate conditional code blocks that were causing compiler warnings

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