[boot] Go back to loading symbol table in boot

The symbol table needs to be passed to the panic handler very early in
the kernel, loading it in init is far less useful. Return it to the boot
directory and remove it from the initrd.

src/boot/status.cpp

@@ -158,6 +158,8 @@ status_line::do_fail(const wchar_t *message, uefi::status status)
 void
 status_line::do_blank()
 {
+    m_level = level_ok; // Keep print_status_tag from happening in dtor
+
     auto out = console::get().m_out;
     int row = out->mode->cursor_row;