Patch[2/4]:This patch adds cpu directory for OMAP3 processor.

This patch adds cpu directory for OMAP3 processor.

Signed-off-by:
        Shashi Ranjan <shashiranjanmca05@gmail.com>
        Sunil Kumar <sunilsaini05@gmail.com>
        Syed Mohammed Khasim <khasim@ti.com>