BACKPORT: gpio: Add missing device-managed documentation

Add the GPIO-related device-managed functions to the list of functions
in Documentation/driver-model/devres.txt.

Change-Id: I5733a4941419c143156258de3a8c7327097b0208
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bogdan Davidoaia <bogdan.m.davidoaia@intel.com>
Signed-off-by: Robert Dolca <robert.dolca@intel.com>
1 file changed