Fix: Extend strlcpy implementation to Linux builds (#3616)

* Fix: Add libbsd dependency for Linux builds

Adds conditional libbsd support to resolve strlcpy undefined reference
on Linux systems. Includes proper CMake detection and header includes.

* Fix: Use internal strlcpy implementation for Linux

- Extend existing Windows strlcpy implementation to Linux
- Remove libbsd dependency from CMakeLists.txt
- Resolves undefined reference to strlcpy on glibc systems

Uses the project's existing approach instead of adding external dependencies.

src/core/libraries/network/net.cpp

@@ -802,8 +802,8 @@ u16 PS4_SYSV_ABI sceNetHtons(u16 host16) {
     return htons(host16);
 }
 
-#ifdef WIN32
-// there isn't a strlcpy function in windows so implement one
+#if defined(WIN32) || defined(__linux__)
+// there isn't a strlcpy function in windows/glibc so implement one
 u64 strlcpy(char* dst, const char* src, u64 size) {
     u64 src_len = strlen(src);