Fix Build Warnings for AArch64 (#2242)

This commit links to issue (#2234).

When cross-compiling for AArch64, using gcc 13.3, you encounter three
warnings types that turn into errors:

- maybe-uninitialized
- stringop-truncation
- strict-aliasing

This commit fixes all the warnings found, in regards to the first two
rules. To resolve the warnigns due to strict-aliasing, I am editing the
CMake build system.

Signed-off-by: Antonios Christidis <a-christidis@ti.com>

test_conformance/printf/test_printf.cpp

@@ -1151,7 +1151,8 @@ int main(int argc, const char* argv[])
     char* pcTempFname = get_temp_filename();
     if (pcTempFname != nullptr)
     {
-        strncpy(gFileName, pcTempFname, sizeof(gFileName));
+        strncpy(gFileName, pcTempFname, sizeof(gFileName) - 1);
+        gFileName[sizeof(gFileName) - 1] = '\0';
     }
 
     free(pcTempFname);