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-iop33x/iq80332.c b/arch/arm/mach-iop33x/iq80332.c
index e2f5bee..8192987 100644
--- a/arch/arm/mach-iop33x/iq80332.c
+++ b/arch/arm/mach-iop33x/iq80332.c
@@ -45,10 +45,6 @@
 		iop_init_time(266000000);
 }
 
-static struct sys_timer iq80332_timer = {
-	.init		= iq80332_timer_init,
-};
-
 
 /*
  * IQ80332 PCI.
@@ -143,7 +139,7 @@
 	.atag_offset	= 0x100,
 	.map_io		= iop3xx_map_io,
 	.init_irq	= iop33x_init_irq,
-	.timer		= &iq80332_timer,
+	.init_time	= iq80332_timer_init,
 	.init_machine	= iq80332_init_machine,
 	.restart	= iop3xx_restart,
 MACHINE_END