Gigabeat S: There's no compelling reason to start automatic scaling in the bootloader only stop it milliseconds later. Do init to default frequency and working point, however.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25839 a1c6a512-1295-4272-9138-f99709370657

firmware/target/arm/imx31/gigabeat-s/kernel-gigabeat-s.c

@@ -72,7 +72,9 @@ void kernel_device_init(void)
     mc13783_init();
     dvfs_dptc_init();
     dvfs_wfi_monitor(true); /* Monitor the WFI signal */
+#ifndef BOOTLOADER
     dvfs_dptc_start(); /* Should be ok to start even so early */
+#endif
 }
 
 void tick_stop(void)