ARM: omap2: add select of TI_PRIV_EDMA
ARM: omap2: add select of TI_PRIV_EDMA

"ARM: OMAP: build mach-omap code only if needed" moved around the
ARCH_OMAP2PLUS stanza, but accidentally dropped the seleciton of
TI_PRIV_EDMA in the process. Add it back.

Cc: Arnd Bergmann <f2c659f01951776204a6c5b902787d9019fbeebd@arndb.de>
Cc: Tony Lindgren <1001e8702733cced254345e193c88aaa47a4f5de@atomide.com>
Signed-off-by: Olof Johansson <8c69ee23f3f44f8162a64d579c1fa25c2f55298a@lixom.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs