pinctrl: max77620: Remove unused structure definition

pinctrl: max77620: Remove unused structure definition

The strucuture 'max77620_cfg_param' is defined but never used by the
max77620 driver. Remove this structure definition.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit 648eb7a1bc3ceadbb2450272bce5297b7aa3d37e)
Signed-off-by: Venkat Reddy Talla <vreddytalla@nvidia.com>
Change-Id: I19234d390f05d1527cfc4242eea8006b802cc5df
Reviewed-on: http://git-master/r/1254723
GVS: Gerrit_Virtual_Submit
Reviewed-by: Venkat Reddy Talla <vreddytalla@nvidia.com>
Tested-by: Venkat Reddy Talla <vreddytalla@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>