qemu-timer.c: Use upstream version.

This completely modifies the implementation of timers to match upstream,
the only difference is that the oddly-placed qemu_gpoll_ns() function is
disabled (it's not used yet).

Most of the changes here (but not all), were applied through the following
sed script:

	s|qemu_get_clock\s*(\s*vm_clock\s*)|qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)|g
	s|qemu_get_clock\s*(\s*rt_clock\s*)|qemu_clock_get_ms(QEMU_CLOCK_REALTIME)|g
	s|qemu_get_clock_ns\s*(\s*vm_clock\s*)|qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL)|g
	s|qemu_get_clock_ns\s*(\s*rt_clock\s*)|qemu_clock_get_ns(QEMU_CLOCK_REALTIME)|g
	s|qemu_get_clock_ms\s*(\s*vm_clock\s*)|qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL)|g
	s|qemu_get_clock_ms\s*(\s*rt_clock\s*)|qemu_clock_get_ms(QEMU_CLOCK_REALTIME)|g
	s|qemu_get_clock_ms\s*(\s*host_clock\s*)|qemu_clock_get_ms(QEMU_CLOCK_HOST)|g
	s|qemu_get_clock_ms\s*(\s*SHAPER_CLOCK\s*)|qemu_clock_get_ms(SHAPER_CLOCK)|g
	s|qemu_mod_timer\s*(|timer_mod(|g
	s|qemu_del_timer\s*(|timer_del(|g
	s|qemu_free_timer\s*(|timer_free(|g
	s|qemu_new_timer_ms\s*(\s*rt_clock,|timer_new(QEMU_CLOCK_REALTIME, SCALE_MS,|g
	s|qemu_new_timer_ns\s*(\s*rt_clock,|timer_new(QEMU_CLOCK_REALTIME, SCALE_NS,|g
	s|qemu_new_timer_ms\s*(\s*vm_clock,|timer_new(QEMU_CLOCK_VIRTUAL, SCALE_MS,|g
	s|qemu_new_timer_ns\s*(\s*vm_clock,|timer_new(QEMU_CLOCK_VIRTUAL, SCALE_NS,|g
	s|qemu_new_timer_ms\s*(\s*host_clock,|timer_new(QEMU_CLOCK_HOST, SCALE_MS,|g
	s|qemu_new_timer_ns\s*(\s*host_clock,|timer_new(QEMU_CLOCK_HOST, SCALE_NS,|g
	s|qemu_new_timer_ms\s*(\s*SHAPER_CLOCK\s*,|timer_new(SHAPER_CLOCK, SCALE_MS,|g
	s|qemu_put_timer\s*(|timer_put(|g
	s|qemu_get_timer\s*(|timer_get(|g
	s|qemu_timer_pending\s*(|timer_pending(|g
	s|qemu_clock_next_deadline\s*(\s*vm_clock|qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL|g
	s|qemu_clock_next_deadline\s*(\s*rt_clock|qemu_clock_deadline_ns_all(QEMU_CLOCK_REALTIME|g
	s|qemu_clock_next_deadline\s*(\s*host_clock|qemu_clock_deadline_ns_all(QEMU_CLOCK_HOST|g

+ Disable icount-based clock warping/adjustments. It will be re-enabled in the future
  after cpu emulation has been completely refactored.

Change-Id: Ifbcf4a52654eed3a08dfe59b0546a75d4627f758
diff --git a/arch_init.c b/arch_init.c
index 4c44dc5..359ef7c 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -298,7 +298,7 @@
     }
 
     bytes_transferred_last = bytes_transferred;
-    bwidth = qemu_get_clock_ns(rt_clock);
+    bwidth = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
 
     while (!qemu_file_rate_limit(f)) {
         int bytes_sent;
@@ -310,7 +310,7 @@
         }
     }
 
-    bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
+    bwidth = qemu_clock_get_ns(QEMU_CLOCK_REALTIME) - bwidth;
     bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
 
     /* if we haven't transferred anything this round, force expected_time to a