Fix Gemalto Cinterion build

Author: multiplemonomials

connectivity/drivers/cellular/GEMALTO/CMakeLists.txt

@@ -2,5 +2,5 @@
 # SPDX-License-Identifier: Apache-2.0
 
 if("COMPONENT_GEMALTO_CINTERION=1" IN_LIST MBED_TARGET_DEFINITIONS)
-	add_subdirectory(CINTERION)
+	add_subdirectory(COMPONENT_GEMALTO_CINTERION)
 endif()