Re-added ELAN

CMSIS/Utilities/PACK.xsd

@@ -160,6 +160,7 @@
       <xs:enumeration value="Dialog Semiconductor:113" />
       <xs:enumeration value="Dolphin:57" />
       <xs:enumeration value="Domosys:26" />
+      <xs:enumeration value="ELAN:162" />
       <xs:enumeration value="Elmos Semiconductor AG:138" />
       <xs:enumeration value="Ember:98" />
       <xs:enumeration value="Energy Micro:97" />