inc: update BoardConfig as my toolchain is in linaro-4.7 not
linaro-toolchain

Change-Id: Ib04c9f6b064f1dddeadfff48d8c3460aca7b658b
inc: add Linaro manifest

Change-Id: I32c552b7f72ba5f7d3dd9be0479c666ef4f3caa2
README.md: add Dalvik cherry picks and additional instructions for an
optional Linaro build

Change-Id: I9ed8bc513570e565decd68e8a7b3b891aea28867