linux-ti-staging: Add OMAP5 support
linux-ti-staging: Add OMAP5 support

* Add the KERNEL_DEVICETREE definitions for omap5-evm
* Add the omap-a15 SOC_FAMILY to the list of COMPATIBLE_MACHINEs

Signed-off-by: Chase Maupin <5a5662f468a76e0fc4391e65fb9f536df44d7380@ti.com>
Signed-off-by: Denys Dmytriyenko <d29de71aea38aad3a87d486929cb0aad173ae612@ti.com>

smoosvi/Test4,tylerwhall/meta-ti,rcn-ee/meta-ti,RedFIR/meta-ti,Angstrom-distribution/meta-ti,RedFIR/meta-ti,joelagnel/meta-ti,jumpnow/meta-ti,treideme/meta-ti-rt,floft/meta-ti,floft/meta-ti,treideme/meta-ti-rt,jumpnow/meta-ti,RedFIR/meta-ti,RedFIR/meta-ti,Angstrom-distribution/meta-ti,smoosvi/Test4,tylerwhall/meta-ti,rcn-ee/meta-ti,rcn-ee/meta-ti,joelagnel/meta-ti,joelagnel/meta-ti,tylerwhall/meta-ti,rcn-ee/meta-ti,joelagnel/meta-ti,tylerwhall/meta-ti