fix: fix 'is_board_type' function (mainsail-crew#243)

Since we applied PR mainsail-crew#241 and mainsail-crew#242,
this function always doesnt give the right value,
which leads to unwanted behaviour in enabling SPI during build.

As we no longer rename the release file,
we have to use its original location in '/etc/armbian-release'
( Or '/etc/orangepi-release' if Opi Image is used )

Signed-off-by: Stephan Wendel <me@stephanwe.de>

src/modules/armbian/start_chroot_script

@@ -21,7 +21,7 @@ install_cleanup_trap
 is_board_type() {
     local board releasefile
     board=""
-    releasefile="/etc/armbian-release-info.txt"
+    releasefile="/etc/armbian-release"
     if [[ -f "${releasefile}" ]]; then
         board="$(grep "BOARD=" "${releasefile}" | cut -d'=' -f2)"
     fi

src/modules/orangepi/start_chroot_script

@@ -28,7 +28,7 @@ install_cleanup_trap
 is_board_type() {
     local board releasefile
     board=""
-    releasefile="/etc/orangepi-release-info.txt"
+    releasefile="/etc/orangepi-release"
     if [[ -f "${releasefile}" ]]; then
         board="$(grep "BOARD=" "${releasefile}" | cut -d'=' -f2)"
     fi