am33xx: Add required includes to some omap/am33xx code

- In arch/arm/cpu/armv7/omap-common/timer.c,
  drivers/mtd/nand/omap_gpmc.c and drivers/net/cpsw.c add #include files
  that the driver needs but had been relying on <config.h> to bring in.
- In arch/arm/cpu/armv7/omap-common/lowlevel_init.S add <config.h>
- In am335x_evm.h and pcm051.h don't globally include
  <asm/arch/hardware.h> and <asm/arch/cpu.h> but just <asm/arch/omap.h>
  as that is the only include which defines things the config uses.

Cc: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/drivers/mtd/nand/omap_gpmc.c b/drivers/mtd/nand/omap_gpmc.c
index cee394e..bbf5443 100644
--- a/drivers/mtd/nand/omap_gpmc.c
+++ b/drivers/mtd/nand/omap_gpmc.c
@@ -25,6 +25,7 @@
 #include <asm/io.h>
 #include <asm/errno.h>
 #include <asm/arch/mem.h>
+#include <asm/arch/cpu.h>
 #include <asm/arch/omap_gpmc.h>
 #include <linux/mtd/nand_ecc.h>
 #include <linux/compiler.h>
diff --git a/drivers/net/cpsw.c b/drivers/net/cpsw.c
index 93f8417..7a36850 100644
--- a/drivers/net/cpsw.c
+++ b/drivers/net/cpsw.c
@@ -24,6 +24,7 @@
 #include <asm/errno.h>
 #include <asm/io.h>
 #include <phy.h>
+#include <asm/arch/cpu.h>
 
 #define BITMASK(bits)		(BIT(bits) - 1)
 #define PHY_REG_MASK		0x1f