kernel: modules: gpio.mk: renamed from gpio-cascade.mk

This can be used to place the gpio module, so rename it.

Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>

package/kernel/linux/modules/gpio.mk

@@ -0,0 +1,20 @@
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+GPIO_MENU:=GPIO support
+
+define KernelPackage/gpio-cascade
+  SUBMENU:=$(GPIO_MENU)
+  TITLE:=Generic GPIO cascade
+  KCONFIG:=CONFIG_GPIO_CASCADE
+  DEPENDS:=@GPIO_SUPPORT +kmod-mux-core
+  FILES:=$(LINUX_DIR)/drivers/gpio/gpio-cascade.ko
+  AUTOLOAD:=$(call AutoLoad,29,gpio-cascade,1)
+endef
+
+define KernelPackage/gpio-cascade/description
+  Kernel module for Generic GPIO cascade
+endef
+
+$(eval $(call KernelPackage,gpio-cascade))