Merge tag 'ib-platform-chrome-mfd-move-cros-ec-transport-for-4.19' into working-branch-for-4.19

Immutable branch (mfd, chrome) due for the v4.19 window

Immutable Branch which moves the cros_ec_i2c and cros_ec_spi
transport drivers from mfd to platform/chrome. Changes in arm are a simple
rename in defconfigs. Change in input is a rename in help text.