ci: update to build 2 parallel jobs per run

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

.shippable.yml

@@ -12,9 +12,9 @@ env:
         - USE_CCACHE=1
         - secure: CaE0YOxMfS71yTJsLOUMAXyvrOfgPbT6NLakwXShPHFF+aqqu9UyrmwFE1UfNxDrFOa3h0gxmbMRJAdGPLdKeLmGlLiL96XMhpaZIWYmAD2/Kfx9wb+1zfYISrh9k11QIifbB5JpeiFzNrrwYLOv5Gqn2fkAgvSe0BEKoh6weCvMXHgxwJR/I5gtQYwZXI6arvOTWlVgRpXeqURcJbthsmp7/Bc4MctgiRXmBxeyvi+OTVe1u/sNPVf51ZYcNdaqw+xRp9xFeg09EP87QPlDHV+g9dPWuGvGHAwQ86TD8hkpjurLO3O8GHCXena7Ft0/t9iL4RBecUIBplISNuaK6Q==
     matrix:
-        - ARCH="" RUN_COMPLIANCE="1"
+        - ARCH="-a x86 -a riscv32 -a nios2" RUN_COMPLIANCE="1"
+        - ARCH="-a arm -a arc"
         #- ARCH="-a x86" RUN_COMPLIANCE="1"
-        #- ARCH="-a arm"
         #- ARCH="-a arc -a riscv32 -a nios2"
 
 build:
@@ -37,19 +37,23 @@ build:
       - export PREBUILT_HOST_TOOLS=${ZEPHYR_BASE}/bin
       - >
           if [ "$RUN_COMPLIANCE" = "1" -a "$IS_PULL_REQUEST" = "true"]; then
+            echo "Building a Pull Request";
             errors=$(./scripts/ci/check-compliance.py);
             cat compliance.xml
           fi;
       - >
           if [ "$JOB_TRIGGERED_BY_NAME" = "daily-verify-asserts" ]; then
+            echo "Building with --all --enable-slow -R";
             COVERAGE="--all --enable-slow -R";
           fi;
       - >
           if [ "$JOB_TRIGGERED_BY_NAME" = "daily-verify" ]; then
+            echo "Building with --all --enable-slow";
             COVERAGE="--all --enable-slow";
           fi;
       - >
           if [ "$JOB_TRIGGERED_BY_NAME" = "code-scan" ]; then
+            echo "Building basic sanitycheck";
             wget https://scan.coverity.com/download/linux64 --post-data "token=${COVERITY_TOKEN}&project=Zephyr" -O coverity_tool.tgz;
             tar xvf coverity_tool.tgz;
             rm -f coverity_tool.tgz;