Reenable one MCU

.github/workflows/greentea_cmake.yml

@@ -1,14 +1,14 @@
-name: test building greentea tests with cmake
+name: Test that Mbed and Greentea tests compile for each MCU family.
 on: [pull_request]
 
 jobs:
   build-greentea-cmake:
     runs-on: ubuntu-latest
     container: ghcr.io/armmbed/mbed-os-env:master-latest
 
-    # strategy:
-    #   matrix:
-    #     include:
+    strategy:
+      matrix:
+        include:
           ## For this matrix, we choose one target from each MCU target family that Mbed supports.
           ## The target families can be seen here:
           ## https://mbed-ce.github.io/mbed-ce-test-tools/targets/index.html
@@ -17,8 +17,8 @@ jobs:
           ## can compile the netsocket tests.
 
           # NXP MCUs
-          # - target: LPC1768
-          #   baremetal: 0
+          - target: LPC1768
+            baremetal: 0
           # - target: LPC546XX
           #   baremetal: 0
           # - target: MIMXRT1060_EVK