Copy the savedefconfig (or minimal defconfig) instead of the .config when updating defconfigs. Change-Id: I0ba0b7a774dd3de0dc090420bd5c118eb6199eb6 Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> (cherry picked from commit 6575c0b29f060a5ebdeec0ff9bcfe0f1af9f0bc8)