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-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c
index 07d6672..6a4524b 100644
--- a/arch/arm/mach-realview/realview_pb1176.c
+++ b/arch/arm/mach-realview/realview_pb1176.c
@@ -329,10 +329,6 @@
 	realview_timer_init(IRQ_DC1176_TIMER0);
 }
 
-static struct sys_timer realview_pb1176_timer = {
-	.init		= realview_pb1176_timer_init,
-};
-
 static void realview_pb1176_restart(char mode, const char *cmd)
 {
 	void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
@@ -384,7 +380,7 @@
 	.map_io		= realview_pb1176_map_io,
 	.init_early	= realview_init_early,
 	.init_irq	= gic_init_irq,
-	.timer		= &realview_pb1176_timer,
+	.init_time	= realview_pb1176_timer_init,
 	.handle_irq	= gic_handle_irq,
 	.init_machine	= realview_pb1176_init,
 #ifdef CONFIG_ZONE_DMA