Adding deprecation warning for mbed-os 5.10#12

Open

yossi2le wants to merge 3 commits intomasterfrom

move-dataflash-driver-to-mbed-os

Commits on Aug 28, 2018

Adding deprecation warning for mbed-os 5.10

Yossi Levy
authored and
Yossi Levy
committed

Commits on Sep 20, 2018

Updating deprication message to have links to new code and documents. disabling build after 5.10

Yossi Levy
authored and
Yossi Levy
committed

Commits on Sep 25, 2018

Correcting spelling

Yossi Levy
authored and
Yossi Levy
committed