target-arm: Make IRQ and FIQ gpio lines on the CPU object

Now that ARMCPU is a subclass of DeviceState, we can make the
CPU's inbound IRQ and FIQ lines be simply gpio lines, which
means we can remove the odd arm_pic shim.

We retain the arm_pic_init_cpu() function as a backwards
compatibility shim layer so we can convert the board models
to get the IRQ and FIQ lines directly from the ARMCPU
object one at a time.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1375977856-25046-2-git-send-email-peter.maydell@linaro.org

target-arm/cpu.h

@@ -58,6 +58,9 @@
 /* ARM-specific interrupt pending bits.  */
 #define CPU_INTERRUPT_FIQ   CPU_INTERRUPT_TGT_EXT_1
 
+/* Meanings of the ARMCPU object's two inbound GPIO lines */
+#define ARM_CPU_IRQ 0
+#define ARM_CPU_FIQ 1
 
 typedef void ARMWriteCPFunc(void *opaque, int cp_info,
                             int srcreg, int operand, uint32_t value);