mpv: disable with ARC external toolchain

This package fails when building with ARC external toolchain

Marking this with special comment "# ARC toolchain issue" as the package
is to be enabled as soon as the issue with the ARC toolchain is
resolved.

Fixes:
  http://autobuild.buildroot.net/results/fb6/fb677a917545adee321bdcd2c2519c81326448c4//

Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mpv/Config.in

@@ -4,6 +4,8 @@ config BR2_PACKAGE_MPV
 	depends on BR2_PACKAGE_FFMPEG_ARCH_SUPPORTS
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
 	depends on BR2_TOOLCHAIN_HAS_ATOMIC || BR2_TOOLCHAIN_HAS_SYNC_8
+	# ARC toolchain issue
+	depends on !BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC
 	select BR2_PACKAGE_LIBICONV if !BR2_ENABLE_LOCALE
 	select BR2_PACKAGE_FFMPEG
 	select BR2_PACKAGE_FFMPEG_SWSCALE
@@ -21,3 +23,4 @@ comment "mpv needs a toolchain w/ threads, gcc >= 4.5"
 	depends on BR2_TOOLCHAIN_HAS_ATOMIC || BR2_TOOLCHAIN_HAS_SYNC_8
 	depends on !BR2_TOOLCHAIN_HAS_THREADS || \
 		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
+	depends on !BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC