hw/intc/openpic: Clean up local variable shadowing

Fix:

  hw/intc/openpic.c: In function ‘openpic_gbl_write’:
  hw/intc/openpic.c:614:17: warning: declaration of ‘idx’ shadows a previous local [-Wshadow=compatible-local]
    614 |             int idx;
        |                 ^~~
  hw/intc/openpic.c:568:9: note: shadowed declaration is here
    568 |     int idx;
        |         ^~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20230904162824.85385-3-philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
diff --git a/hw/intc/openpic.c b/hw/intc/openpic.c
index c757adb..a6f91d4 100644
--- a/hw/intc/openpic.c
+++ b/hw/intc/openpic.c
@@ -610,11 +610,8 @@
     case 0x10B0:
     case 0x10C0:
     case 0x10D0:
-        {
-            int idx;
-            idx = (addr - 0x10A0) >> 4;
-            write_IRQreg_ivpr(opp, opp->irq_ipi0 + idx, val);
-        }
+        idx = (addr - 0x10A0) >> 4;
+        write_IRQreg_ivpr(opp, opp->irq_ipi0 + idx, val);
         break;
     case 0x10E0: /* SPVE */
         opp->spve = val & opp->vector_mask;