trousers: disable on ARC

This package has been failing to build on ARC due to a toolchain bug
since December 2015, causing a total of 168 build failures. Therefore,
let's disable this package for now, until the toolchain issue gets
resolved.

Fixes^Wavoids:

  http://autobuild.buildroot.net/results/e65d1d7c5a4dd4616167cfe2aa938be6af139602/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/tpm-tools/Config.in

@@ -5,6 +5,7 @@ config BR2_PACKAGE_TPM_TOOLS
 	select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT_IF_LOCALE
 	depends on BR2_TOOLCHAIN_HAS_THREADS # trousers
 	depends on !BR2_STATIC_LIBS # trousers
+	depends on !BR2_arc # trousers
 	help
 	  Tools to manage and diagnose a TPM
 
@@ -12,3 +13,4 @@ config BR2_PACKAGE_TPM_TOOLS
 
 comment "tpm-tools needs a toolchain w/ threads, dynamic library"
 	depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_STATIC_LIBS
+	depends on !BR2_arc

package/trousers/Config.in

@@ -5,6 +5,8 @@ config BR2_PACKAGE_TROUSERS
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	# doesn't build properly in static only configurations
 	depends on !BR2_STATIC_LIBS
+	# broken toolchain
+	depends on !BR2_arc
 	help
 	  The open-source TCG Software Stack (TSS).
 
@@ -16,3 +18,4 @@ config BR2_PACKAGE_TROUSERS
 
 comment "trousers needs a toolchain w/ threads, dynamic library"
 	depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_STATIC_LIBS
+	depends on !BR2_arc