linux: add missing dependencies to kmod-fs-msdos and kmod-fs-xfs

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37398 3c298f89-4303-0410-b956-a3cf2f4a3e73
linux: add missing dependency to kmod-i2c-tiny-usb

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37399 3c298f89-4303-0410-b956-a3cf2f4a3e73