ARM: OMAP2+: Drop useless gptimer option for omap4

We have local timers on Cortex-A9, so using the gptimer option makes no
sense. Let's just drop it for omap4 to simplify the timer options a bit.

If this is really needed, it can be still done by specifying dts properties
in the board specific file for assigned-clocks and assigned-clock-parents.

This gets us a bit closer to start dropping legacy platform data for
gptimers except for timer1 that is used for system clockevent.

Cc: Keerthy <j-keerthy@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/timer.c

@@ -545,7 +545,7 @@ static void __init __omap_sync32k_timer_init(int clkev_nr, const char *clkev_src
 	omap2_gp_clockevent_init(clkev_nr, clkev_src, clkev_prop);
 
 	/* Enable the use of clocksource="gp_timer" kernel parameter */
-	if (use_gptimer_clksrc || gptimer)
+	if (clksrc_nr && (use_gptimer_clksrc || gptimer))
 		omap2_gptimer_clocksource_init(clksrc_nr, clksrc_src,
 						clksrc_prop);
 	else
@@ -586,7 +586,7 @@ void __init omap3_gptimer_timer_init(void)
 static void __init omap4_sync32k_timer_init(void)
 {
 	__omap_sync32k_timer_init(1, "timer_32k_ck", "ti,timer-alwon",
-			2, "sys_clkin_ck", NULL, false);
+				  0, NULL, NULL, false);
 }
 
 void __init omap4_local_timer_init(void)