Renamed 050-* to comply with patch naming convention.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5814 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/generic-2.6/patches/050-mtdpart-redboot-partition-truncate.patch b/target/linux/generic-2.6/patches/050-mtdpart_redboot_partition_truncate.patch
similarity index 100%
rename from target/linux/generic-2.6/patches/050-mtdpart-redboot-partition-truncate.patch
rename to target/linux/generic-2.6/patches/050-mtdpart_redboot_partition_truncate.patch