change all rt_clock references to use millisecond resolution accessors

This was done with:

    sed -i '/get_clock\>.*rt_clock/s/get_clock\>/get_clock_ms/' \
        $(git grep -l 'get_clock\>.*rt_clock' )
    sed -i '/new_timer\>.*rt_clock/s/new_timer\>/new_timer_ms/' \
        $(git grep -l 'new_timer\>.*rt_clock' )

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.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/qemu-char.c b/qemu-char.c
index cad35d7..31c9e79 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -267,7 +267,7 @@
                 int64_t ti;
                 int secs;
 
-                ti = qemu_get_clock(rt_clock);
+                ti = qemu_get_clock_ms(rt_clock);
                 if (d->timestamps_start == -1)
                     d->timestamps_start = ti;
                 ti -= d->timestamps_start;
@@ -911,7 +911,7 @@
      * timeout to the normal (much longer) poll interval before the
      * timer triggers.
      */
-    qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 10);
+    qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 10);
 }
 
 static void pty_chr_state(CharDriverState *chr, int connected)
@@ -925,7 +925,7 @@
         /* (re-)connect poll interval for idle guests: once per second.
          * We check more frequently in case the guests sends data to
          * the virtual device linked to our pty. */
-        qemu_mod_timer(s->timer, qemu_get_clock(rt_clock) + 1000);
+        qemu_mod_timer(s->timer, qemu_get_clock_ms(rt_clock) + 1000);
     } else {
         if (!s->connected)
             qemu_chr_generic_open(chr);
@@ -1001,7 +1001,7 @@
     chr->chr_update_read_handler = pty_chr_update_read_handler;
     chr->chr_close = pty_chr_close;
 
-    s->timer = qemu_new_timer(rt_clock, pty_chr_timer, chr);
+    s->timer = qemu_new_timer_ms(rt_clock, pty_chr_timer, chr);
 
     return chr;
 }