sbkeys: pass missing vars to sbkeys script

The script self-invokes in either a docker container or by creating a
new bash subprocess, so all variables need to be exported to that
sub-process on creation.

Author: cbgbt

sbkeys/generate-aws-sbkeys

@@ -160,7 +160,9 @@ if [ -n "${SDK_IMAGE:-}" ] ; then
     ${AWS_SECRET_ACCESS_KEY:+-e AWS_SECRET_ACCESS_KEY=$AWS_SECRET_ACCESS_KEY} \
     ${AWS_SESSION_TOKEN:+-e AWS_SESSION_TOKEN=$AWS_SESSION_TOKEN} \
     -e AWS_REGION="${AWS_REGION}" \
+    -e AWS_PARTITION="${AWS_PARTITION}" \
     -e AWS_DEFAULT_REGION="${AWS_REGION}" \
+    -e CA_SIGNING_ALGORITHM="${CA_SIGNING_ALGORITHM}" \
     -e PK_CA="${PK_CA}" \
     -e KEK_CA="${KEK_CA}" \
     -e DB_CA="${DB_CA}" \
@@ -176,6 +178,7 @@ else
   export PK_CA KEK_CA DB_CA VENDOR_CA
   export CODE_SIGN_KEY CONFIG_SIGN_KEY SHIM_SIGN_KEY
   export AWS_REGION AWS_KMS_PKCS11_CONF OUTPUT_DIR
+  export AWS_PARTITION CA_SIGNING_ALGORITHM
   bash "${SBKEYS_SCRIPT}"
 fi