kernel: Add mtd_nandbiterrs.ko to kmod-mtdtests

The mtd_nandbiterrs.ko kernel module was added with kernel 3.7. We
should package it like the other test modules.

Signed-off-by: Hauke Mehrtens <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/15833
Signed-off-by: Christian Marangi <[email protected]>

package/kernel/linux/modules/other.mk

@@ -577,6 +577,7 @@ define KernelPackage/mtdtests
   TITLE:=MTD subsystem tests
   KCONFIG:=CONFIG_MTD_TESTS
   FILES:=\
+	$(LINUX_DIR)/drivers/mtd/tests/mtd_nandbiterrs.ko \
 	$(LINUX_DIR)/drivers/mtd/tests/mtd_nandecctest.ko \
 	$(LINUX_DIR)/drivers/mtd/tests/mtd_oobtest.ko \
 	$(LINUX_DIR)/drivers/mtd/tests/mtd_pagetest.ko \