[POWERPC] Clean out asm/of_{platform, device}.h

Convert #include of asm/of_{platform, device}.h into
linux/of_{platform,device}.h for a few scattered platforms.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/platforms/embedded6xx/holly.c

@@ -26,6 +26,7 @@
 #include <linux/serial.h>
 #include <linux/tty.h>
 #include <linux/serial_core.h>
+#include <linux/of_platform.h>
 
 #include <asm/system.h>
 #include <asm/time.h>
@@ -39,7 +40,6 @@
 #include <asm/tsi108_irq.h>
 #include <asm/tsi108_pci.h>
 #include <asm/mpic.h>
-#include <asm/of_platform.h>
 
 #undef DEBUG