Add /usr/lib64 and /lib64 to default library path list for sparc linux

compiler/systems/t_linux.pas

@@ -199,6 +199,8 @@ begin
 {$ifdef sparc64}
       LibrarySearchPath.AddLibraryPath(sysrootpath,'=/usr/lib/sparc64-linux-gnu',true);
       LibrarySearchPath.AddLibraryPath(sysrootpath,'=/lib/sparc64-linux-gnu',true);
+      LibrarySearchPath.AddLibraryPath(sysrootpath,'=/usr/lib64',true);
+      LibrarySearchPath.AddLibraryPath(sysrootpath,'=/lib64',true);
 {$endif sparc64}
 {$ifdef riscv32}
       LibrarySearchPath.AddLibraryPath(sysrootpath,'=/usr/lib/riscv32-linux-gnu',true);