Move the yaffs patch to be generic, shared between rb532 and adm5120

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6716 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/rb532-2.6/patches/510-Yaffs.patch b/target/linux/generic-2.6/patches/510-Yaffs.patch
similarity index 100%
rename from target/linux/rb532-2.6/patches/510-Yaffs.patch
rename to target/linux/generic-2.6/patches/510-Yaffs.patch