util: move declarations out of qemu-common.h

Move declarations out of qemu-common.h for functions declared in
utils/ files: e.g. include/qemu/path.h for utils/path.c.
Move inline functions out of qemu-common.h and into new files (e.g.
include/qemu/bcd.h)

Signed-off-by: Veronia Bahaa <veroniabahaa@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
index 40ec6fd..159ec69 100644
--- a/target-ppc/kvm.c
+++ b/target-ppc/kvm.c
@@ -42,6 +42,7 @@
 #include "exec/gdbstub.h"
 #include "exec/memattrs.h"
 #include "sysemu/hostmem.h"
+#include "qemu/cutils.h"
 
 //#define DEBUG_KVM