libxpm: upgraded to 3.5.7

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@3936 311d38ba-8fff-0310-9ca6-ca027cbcb966

diff --git a/meta/packages/xorg-lib/libxpm_3.5.6.bb b/meta/packages/xorg-lib/libxpm_3.5.7.bb
similarity index 100%
rename from meta/packages/xorg-lib/libxpm_3.5.6.bb
rename to meta/packages/xorg-lib/libxpm_3.5.7.bb