change all other clock references to use nanosecond resolution accessors

This was done with:

    sed -i 's/qemu_get_clock\>/qemu_get_clock_ns/' \
        $(git grep -l 'qemu_get_clock\>' )
    sed -i 's/qemu_new_timer\>/qemu_new_timer_ns/' \
        $(git grep -l 'qemu_new_timer\>' )

after checking that get_clock and new_timer never occur twice
on the same line.  There were no missed occurrences; however, even
if there had been, they would have been caught by the compiler.

There was exactly one false positive in qemu_run_timers:

     -    current_time = qemu_get_clock (clock);
     +    current_time = qemu_get_clock_ns (clock);

which is of course not in this patch.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/target-ppc/kvm_ppc.c b/target-ppc/kvm_ppc.c
index 6f0468c..536fcab 100644
--- a/target-ppc/kvm_ppc.c
+++ b/target-ppc/kvm_ppc.c
@@ -89,7 +89,7 @@
 static void kvmppc_timer_hack(void *opaque)
 {
     qemu_service_io();
-    qemu_mod_timer(kvmppc_timer, qemu_get_clock(vm_clock) + kvmppc_timer_rate);
+    qemu_mod_timer(kvmppc_timer, qemu_get_clock_ns(vm_clock) + kvmppc_timer_rate);
 }
 
 void kvmppc_init(void)
@@ -99,7 +99,7 @@
      * run. So, until Qemu gains IO threads, we create this timer to ensure
      * that the device model gets a chance to run. */
     kvmppc_timer_rate = get_ticks_per_sec() / 10;
-    kvmppc_timer = qemu_new_timer(vm_clock, &kvmppc_timer_hack, NULL);
-    qemu_mod_timer(kvmppc_timer, qemu_get_clock(vm_clock) + kvmppc_timer_rate);
+    kvmppc_timer = qemu_new_timer_ns(vm_clock, &kvmppc_timer_hack, NULL);
+    qemu_mod_timer(kvmppc_timer, qemu_get_clock_ns(vm_clock) + kvmppc_timer_rate);
 }