cpus: Pass CPUState to [qemu_]cpu_has_work()

For target-mips also change the return type to bool.

Make include paths for cpu-qom.h consistent for alpha and unicore32.

Signed-off-by: Andreas Färber <afaerber@suse.de>
[AF: Updated new target-openrisc function accordingly]
Acked-by: Richard Henderson <rth@twiddle.net> (for alpha)
diff --git a/target-cris/cpu.h b/target-cris/cpu.h
index 4f4df6d..2c27506 100644
--- a/target-cris/cpu.h
+++ b/target-cris/cpu.h
@@ -285,8 +285,10 @@
 #define cpu_list cris_cpu_list
 void cris_cpu_list(FILE *f, fprintf_function cpu_fprintf);
 
-static inline bool cpu_has_work(CPUCRISState *env)
+static inline bool cpu_has_work(CPUState *cpu)
 {
+    CPUCRISState *env = &CRIS_CPU(cpu)->env;
+
     return env->interrupt_request & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_NMI);
 }