ARM: mach-shmobile: Move sh7372 AP4EVB external clk setup

Move the board specific external clock setting for sh7372 AP4EVB
from machine_desc->sys_timer->init() to machine_desc->init_machine().

This is ground work for shmobile timer code consolidation.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

arch/arm/mach-shmobile/board-ap4evb.c

@@ -1197,6 +1197,9 @@ static void __init ap4evb_init(void)
 	u32 srcr4;
 	struct clk *clk;
 
+	/* External clock source */
+	clk_set_rate(&sh7372_dv_clki_clk, 27000000);
+
 	sh7372_pinmux_init();
 
 	/* enable SCIFA0 */
@@ -1437,9 +1440,6 @@ static void __init ap4evb_timer_init(void)
 {
 	sh7372_clock_init();
 	shmobile_timer.init();
-
-	/* External clock source */
-	clk_set_rate(&sh7372_dv_clki_clk, 27000000);
 }
 
 static struct sys_timer ap4evb_timer = {