ARM: omap3: add support to Technexion twister board

The twister board is a development board using
the TAM3517 SOM.

Support for NAND, 2 Ethernet (EMAC and SMC911),
USB (EHCI_OMAP).

Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Tapani Utrianen <tapani@technexion.com>
CC: Tom Rini <tom.rini@gmail.com>
CC: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/boards.cfg b/boards.cfg
index 66c27a4..406d64d 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -210,6 +210,7 @@
 omap3_evm_quick_nand         arm         armv7       evm                 ti             omap3
 omap3_sdp3430                arm         armv7       sdp3430             ti             omap3
 devkit8000                   arm         armv7       devkit8000          timll          omap3
+twister                      arm         armv7       twister             technexion     omap3
 omap4_panda                  arm         armv7       panda               ti             omap4
 omap4_sdp4430                arm         armv7       sdp4430             ti             omap4
 omap5_evm                    arm         armv7       omap5_evm           ti		omap5