CI: try to optimize the file system usage when building in the CI VM env. Increased the VM memory of one to allow linking

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

ci-scripts/buildOnVM.sh

@@ -158,6 +158,9 @@ function build_on_vm {
     echo "cd tmp" >> $VM_CMDS
     echo "echo \"unzip -qq -DD ../localZip.zip\"" >> $VM_CMDS
     echo "unzip -qq -DD ../localZip.zip" >> $VM_CMDS
+    # Trying to make some room on filesystem before building
+    echo "rm ../localZip.zip" >> $VM_CMDS
+    echo "export CI_ENV=True" >> $VM_CMDS
     if [[ "$VM_NAME" == *"-cppcheck"* ]]
     then
         echo "mkdir cmake_targets/log" >> $VM_CMDS

ci-scripts/oai-ci-vm-tool

@@ -172,6 +172,7 @@ function setvar_usage {
 function variant__v1__enb_usrp {
     NB_PATTERN_FILES=9
     BUILD_OPTIONS="--eNB -w USRP --mu"
+    VM_MEMORY=3072
 }
     
 function variant__v2__basic_sim {