This patch adds proc4430 Attach and Detach functionality.
The Attach functions does ioremap of the Ducati physical
address, sets the slave virtual address same as the
physical address. This values are returned to the caller
in the params parameter passed to the Attach.
The Detach function does the reverse of Attach, where it
does the iounmap of the Master Virtual address.
Also, fixed the compile warning in procmgr.
Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>