target/hppa: Provide qemu version via fw_cfg to firmware

Give current QEMU version string to SeaBIOS-hppa via fw_cfg interface so
that the firmware can show the QEMU version in the boot menu info.

Signed-off-by: Helge Deller <deller@gmx.de>
(cherry picked from commit 069d296)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

hw/hppa/machine.c

@@ -122,6 +122,7 @@ static FWCfgState *create_fw_cfg(MachineState *ms)
 {
     FWCfgState *fw_cfg;
     uint64_t val;
+    const char qemu_version[] = QEMU_VERSION;
 
     fw_cfg = fw_cfg_init_mem(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4);
     fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, ms->smp.cpus);
@@ -147,6 +148,10 @@ static FWCfgState *create_fw_cfg(MachineState *ms)
     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ms->boot_config.order[0]);
     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 
+    fw_cfg_add_file(fw_cfg, "/etc/qemu-version",
+                    g_memdup(qemu_version, sizeof(qemu_version)),
+                    sizeof(qemu_version));
+
     return fw_cfg;
 }