Snippets for bochs 2.8 from Alpine ppc64le

Sourced from https://build.alpinelinux.org/buildlogs/build-edge-ppc64le/testing/bochs/bochs-2.8-r1.log.

• virt_timer.cc:394:20: warning: '%u' directive writing between 1 and 10 bytes into a region of size 4 [-Wformat-overflow=]
    394 |     sprintf(name, "%u", i);
        |                    ^~
  

• pc_system.cc:237:20: warning: '%u' directive writing between 1 and 10 bytes into a region of size 4 [-Wformat-overflow=]
    237 |     sprintf(name, "%u", i);
        |                    ^~