Revert "libcdio: disable on ARC, triggers a toolchain bug"

This reverts commit 459f7302df8cdc45aa0f7f2581ebb6f05fb6432a.

libcdio building is fixed for ARC in
2b360bd547f1 "gcc: arc-2017.03-rc2: Fix "unrecognized supposed constant" error"

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Tested-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/libcdio/Config.in

@@ -1,8 +1,6 @@
 config BR2_PACKAGE_LIBCDIO
 	bool "libcdio"
 	depends on BR2_USE_MMU # fork()
-	# ARC toolchain issue
-	depends on !BR2_arc
 	select BR2_PACKAGE_LIBICONV if !BR2_ENABLE_LOCALE
 	help
 	  The GNU Compact Disc Input and Control library.