ARM: OMAP2+ Move SoC specific headers to be local to mach-omap2

These can now be moved to be local headers in mach-omap2.

Note that this patch removes arch/arm/plat-omap/devices.c as it
will get removed anyways with Paul Walmsley's patch
"ARM: OMAP: split OMAP1, OMAP2+ RNG device registration".

Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S
index 3fbe496..5069879 100644
--- a/arch/arm/mach-omap2/sleep34xx.S
+++ b/arch/arm/mach-omap2/sleep34xx.S
@@ -26,9 +26,9 @@
 
 #include <asm/assembler.h>
 
-#include <plat/omap34xx.h>
 #include <plat/sram.h>
 
+#include "omap34xx.h"
 #include "iomap.h"
 #include "cm2xxx_3xxx.h"
 #include "prm2xxx_3xxx.h"