buildsystem: move STORAGE_SIZE to the general buildsystem

Signed-off-by: Ian Leonard <antonlacon@gmail.com>

scripts/image

@@ -53,6 +53,7 @@ function do_mkimage() {
     EXTRA_CMDLINE="${EXTRA_CMDLINE}" \
     SYSTEM_SIZE="${SYSTEM_SIZE}" \
     SYSTEM_PART_START="${SYSTEM_PART_START}" \
+    STORAGE_SIZE="${STORAGE_SIZE:-32}" \
     OVA_SIZE="${OVA_SIZE}" \
     ${SCRIPTS}/mkimage
 }

scripts/mkimage

@@ -18,8 +18,6 @@ if [ -z "${SYSTEM_SIZE}" -o -z "${SYSTEM_PART_START}" ]; then
   exit 1
 fi
 
-STORAGE_SIZE=32 # STORAGE_SIZE must be >= 32 !
-
 DISK_START_PADDING=$(( (${SYSTEM_PART_START} + 2048 - 1) / 2048 ))
 DISK_GPT_PADDING=1
 DISK_SIZE=$(( ${DISK_START_PADDING} + ${SYSTEM_SIZE} + ${STORAGE_SIZE} + ${DISK_GPT_PADDING} ))