Fix to get the options for 'apt install' from build target

Desktop package needs to install the recommended packages for better UX,
such packages will be installed without '--no-install-recommends' in
'apt install' command.

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Change-Id: Ib024fa218b6d87d5df68f00e81584be87c4b7daa

fixups/S20-install-packages

@@ -7,7 +7,7 @@ locale-gen en_US.UTF-8
 rm -f /etc/apt/sources.list.d/launchpad-hardkernel-ppa.list
 
 apt update && apt upgrade -y
-apt install -y --no-install-recommends \
+apt install @@DEFAULT_APT_OPTIONS@@ \
 	odroid-base \
 	rsync \
 	@@DEFAULT_FLAVOUR_PACKAGES@@ \

functions

@@ -103,6 +103,10 @@ get_kernel_cmdline_defaults() {
     echo ""
 }
 
+get_default_apt_options() {
+    echo "-y --no-install-recommends"
+}
+
 get_packages() {
     [ -f ${1} ] && cat ${1} | awk -F '#|;' '{print $1}'
 }
@@ -365,6 +369,7 @@ do_preinstall() {
         sed -i \
             -e "s,@@DEFAULT_BOARD@@,${BOARD},g" \
             -e "s,@@DEFAULT_HOSTNAME@@,${DISTRO}-${FLAVOUR},g" \
+            -e "s,@@DEFAULT_APT_OPTIONS@@,$(get_default_apt_options ${FLAVOUR}),g" \
             -e "s,@@DEFAULT_FLAVOUR_PACKAGES@@,$(get_flavour_packages),g" \
             -e "s,@@DEFAULT_KERNEL_PACKAGE@@,$(get_kernel_package),g" \
             -e "s,@@DEFAULT_BOOTSCRIPT_PACKAGE@@,$(get_bootscript_package),g" \