pyramid: ION support

Change-Id: Ied7c995edb278634fc22e2443654da1b5b5a09aa
build-pyramid: fix toolchain path

Change-Id: I8e70c7dd733cf356f83b2985e6a0dafee73e4981
pyramid: update defconfig

Change-Id: I03006fb97a7a94a12eef742333d765eb811cbb1e