configs/andes_ae350_45_defconfig: Fix post-build.sh Shellcheck error

Add quotation mark to fix Shellcheck error.

Signed-off-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Vincent Jardin <vjardin@free.fr>
[Julien: remove .checkpackageignore entry to fix check-package error]
Signed-off-by: Julien Olivain <ju.o@free.fr>

.checkpackageignore

@@ -1,7 +1,6 @@
 board/amarula/vyasa/post-build.sh Shellcheck
 board/andes/ae350/patches/uboot/0001-mmc-ftsdc010_mci-Support-DTS-of-ftsdc010-driver-for-.patch lib_patch.Upstream
 board/andes/ae350/patches/uboot/0002-spl-Align-device-tree-blob-address-at-8-byte-boundar.patch lib_patch.Upstream
-board/andes/ae350/post-build.sh Shellcheck
 board/arcturus/aarch64-ucls1012a/post-build.sh Shellcheck
 board/arcturus/aarch64-ucls1012a/post-image.sh Shellcheck
 board/aspeed/common/post-image.sh Shellcheck

board/andes/ae350/post-build.sh

@@ -1,3 +1,3 @@
 #!/bin/sh
-cp $BINARIES_DIR/Image $TARGET_DIR/boot
-cp $BINARIES_DIR/ae350_ax45mp.dtb $TARGET_DIR/boot
+cp "$BINARIES_DIR"/Image "$TARGET_DIR"/boot
+cp "$BINARIES_DIR"/ae350_ax45mp.dtb "$TARGET_DIR"/boot