ARM: O5/dra7xx: Add SATA boot support

Add the SATA boot support for OMAP5 and dra7xx.

Renamed the omap_sata_init to the common init_sata(int dev)
for commonality in with sata stack.

Added the ROM boot device ID for SATA.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/board/ti/dra7xx/evm.c b/board/ti/dra7xx/evm.c
index 1b60b8f..bed8285 100644
--- a/board/ti/dra7xx/evm.c
+++ b/board/ti/dra7xx/evm.c
@@ -12,6 +12,7 @@
  */
 #include <common.h>
 #include <palmas.h>
+#include <sata.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/mmc_host_def.h>
 #include <asm/arch/sata.h>
@@ -80,7 +81,7 @@
 
 int board_late_init(void)
 {
-	omap_sata_init();
+	init_sata(0);
 	return 0;
 }