target/hppa: Remove target_ulong use in disas_log() handler

Since commit 85c19af63e ("include/exec: Use vaddr in DisasContextBase
virtual addresses") the DisasContextBase::pc_first field is a vaddr
type.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20260107200702.54582-9-philmd@linaro.org>

target/hppa/translate.c

@@ -4864,7 +4864,7 @@ static void hppa_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs)
 static bool hppa_tr_disas_log(const DisasContextBase *dcbase,
                               CPUState *cs, FILE *logfile)
 {
-    target_ulong pc = dcbase->pc_first;
+    vaddr pc = dcbase->pc_first;
 
     switch (pc) {
     case 0x00: