ARM: delete struct sys_timer

Now that the only field in struct sys_timer is .init, delete the struct,
and replace the machine descriptor .timer field with the initialization
function itself.

This will enable moving timer drivers into drivers/clocksource without
having to place a public prototype of each struct sys_timer object into
include/linux; the intent is to create a single of_clocksource_init()
function that determines which timer driver to initialize by scanning
the device dtree, much like the proposed irqchip_init() at:
http://www.spinics.net/lists/arm-kernel/msg203686.html

Includes mach-omap2 fixes from Igor Grinberg.

Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index dc24816..f6ca285 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -129,10 +129,6 @@
 	arch_timer_sched_clock_init();
 }
 
-static struct sys_timer highbank_timer = {
-	.init = highbank_timer_init,
-};
-
 static void highbank_power_off(void)
 {
 	hignbank_set_pwr_shutdown();
@@ -209,7 +205,7 @@
 	.smp		= smp_ops(highbank_smp_ops),
 	.map_io		= debug_ll_io_init,
 	.init_irq	= highbank_init_irq,
-	.timer		= &highbank_timer,
+	.init_time	= highbank_timer_init,
 	.handle_irq	= gic_handle_irq,
 	.init_machine	= highbank_init,
 	.dt_compat	= highbank_match,