sparc64: allow 64 IRQ lines

According to UltraSPARC™-IIi User’s Manual, PBM has 64 IRQ lines.
Signed-off-by: NArtyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

hw/pci-host/apb.c

@@ -66,7 +66,7 @@ do { printf("APB: " fmt , ## __VA_ARGS__); } while (0)
 #define RESET_WCMASK 0x98000000
 #define RESET_WMASK  0x60000000
 
-#define MAX_IVEC 0x30
+#define MAX_IVEC 0x40
 
 typedef struct APBState {
     SysBusDevice busdev;

hw/sparc64/sun4u.c

@@ -81,7 +81,7 @@
 #define FW_CFG_SPARC64_HEIGHT (FW_CFG_ARCH_LOCAL + 0x01)
 #define FW_CFG_SPARC64_DEPTH (FW_CFG_ARCH_LOCAL + 0x02)
 
-#define IVEC_MAX             0x30
+#define IVEC_MAX             0x40
 
 #define TICK_MAX             0x7fffffffffffffffULL