toolchain: bump ARC prebuild toolchain to arc-2017.09

There might be subtle differences between uClibc configuration
compared to Buildroot's one.

Native RPC now is disabled because uClinc-ng has removed it.

Signed-off-by: Evgeniy Didin <didin@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: arc-buildroot@synopsys.com
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in

@@ -1,19 +1,18 @@
 config BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC
-	bool "Synopsys ARC 2016.09 toolchain"
+	bool "Synopsys ARC 2017.09 toolchain"
 	depends on BR2_arc
 	depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_7
 	depends on BR2_HOSTARCH = "x86_64"
 	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
 	select BR2_INSTALL_LIBSTDCPP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
 	select BR2_ENABLE_LOCALE
 	select BR2_USE_WCHAR
 	select BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
 	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_6
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_12
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_7
 	help
 	  Toolchain for the ARC cores, from
 	  https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases

toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.hash

@@ -1,5 +1,5 @@
-# Locally calculated
-sha256 9123e35510cc9105e5f9468d5154e0093770d7c11ed771c1a595ecf813692baf  arc_gnu_2016.09_prebuilt_uclibc_le_arc700_linux_install.tar.gz
-sha256 3140066cdbda2df7ed0fb60424bbd9db740fb25393928e733234b0bf65508df2  arc_gnu_2016.09_prebuilt_uclibc_be_arc700_linux_install.tar.gz
-sha256 aa6edb2101b13df3ac59f8d8ccbcfba37a6f7882f0e03baa9d9883480dbed4e7  arc_gnu_2016.09_prebuilt_uclibc_le_archs_linux_install.tar.gz
-sha256 4de227bf73536a87784d88e5f10085b91ede62c76ef8fedf53b4bf2e215054cf  arc_gnu_2016.09_prebuilt_uclibc_be_archs_linux_install.tar.gz
+# From https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/tag/arc-2017.09-release
+sha256 ef74a7567a7341bc5e5d7bf6bcff64c2515be175d08a7def52df847583080ac2  arc_gnu_2017.09_prebuilt_uclibc_le_arc700_linux_install.tar.gz
+sha256 8a7620dd7500641de40adb2ae490d90d53fcad01d13f77ba305fc00df32a26e3  arc_gnu_2017.09_prebuilt_uclibc_be_arc700_linux_install.tar.gz
+sha256 ef7afba0da38cc08d863850f4987ebd16c71c8920c51990f490ad79389f102c1  arc_gnu_2017.09_prebuilt_uclibc_le_archs_linux_install.tar.gz
+sha256 eab1d4872298008bd141104368ec0b7873af600a09704827f767ae57b067c874  arc_gnu_2017.09_prebuilt_uclibc_be_archs_linux_install.tar.gz

toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_VERSION = 2016.09
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_VERSION = 2017.09
 TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_SITE = https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_VERSION)-release
 
 ifeq ($(BR2_arc750d)$(BR2_arc770d),y)