[FS#109] generic/863-gpiommc.patch broken with 4.4 kernel on some targets

[LEDE Bugs]

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FS#109 - generic/863-gpiommc.patch broken with 4.4 kernel on some targets
User who did this: Stijn Tintel (stintel)
Task details edited:
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While compile-testing kernel 4.4.19 on all targets that use 4.4, I ran into the following compile error on brcm47xx, oxnas:


drivers/mmc/host/gpiommc.c:503:2: error: unknown field 'show_attribute' specified in initializer
  .show_attribute  = gpiommc_config_attr_show,
  ^
drivers/mmc/host/gpiommc.c:503:21: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
  .show_attribute  = gpiommc_config_attr_show,
                     ^
drivers/mmc/host/gpiommc.c:503:21: note: (near initialization for 'gpiommc_config_item_ops.allow_link')
drivers/mmc/host/gpiommc.c:504:2: error: unknown field 'store_attribute' specified in initializer
  .store_attribute = gpiommc_config_attr_store,
  ^
drivers/mmc/host/gpiommc.c:504:21: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
  .store_attribute = gpiommc_config_attr_store,
                     ^
drivers/mmc/host/gpiommc.c:504:21: note: (near initialization for 'gpiommc_config_item_ops.drop_link')
scripts/Makefile.build:264: recipe for target 'drivers/mmc/host/gpiommc.o' failed
make[7]: *** [drivers/mmc/host/gpiommc.o] Error 1

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https://bugs.lede-project.org/index.php?do=details&task_id=109