Fix typo with DESCRIPTION var in several recipes

Change-Id: I2637afdb1c868a1f9b54dcbbe55b1a1ee7519d14
diff --git a/recipes-isdn/dahdi-linux/dahdi-linux_2.10.2.bb b/recipes-isdn/dahdi-linux/dahdi-linux_2.10.2.bb
index dc7926e..122b819 100644
--- a/recipes-isdn/dahdi-linux/dahdi-linux_2.10.2.bb
+++ b/recipes-isdn/dahdi-linux/dahdi-linux_2.10.2.bb
@@ -1,4 +1,4 @@
-DESCRITOPN = "Digium Asterisk Hardware Driver Interface - Linux kernel part"
+DESCRIPTION = "Digium Asterisk Hardware Driver Interface - Linux kernel part"
 SECTION = "base"
 HOMEPAGE = "http://www.asterisk.org"
 LICENSE = "GPLv2"