toolchain: bump ARC prebuild toolchain to arc-2018.09

Lets update prebuilt ARC toolchain to the most recent arc-2018.09.

Signed-off-by: Evgeniy Didin <Evgeniy.Didin@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: arc-buildroot@synopsys.com
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

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

@@ -1,7 +1,7 @@
 config BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC
-	bool "Synopsys ARC 2018.03 toolchain"
+	bool "Synopsys ARC 2018.09 toolchain"
 	depends on BR2_arc
-	depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_7
+	depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_8
 	depends on BR2_HOSTARCH = "x86_64"
 	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
 	select BR2_INSTALL_LIBSTDCPP
@@ -12,7 +12,7 @@ config BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC
 	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
 	select BR2_TOOLCHAIN_HAS_SSP
 	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_15
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_7
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_8
 	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 @@
-# From https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/tag/arc-2018.03-release
-sha256 32e8500b65737b51058d84f443d7919d5b33c43f7dc5b8562e08d4e92c53a77f  arc_gnu_2018.03_prebuilt_uclibc_le_arc700_linux_install.tar.gz
-sha256 722e3656f60bafd632b6f2ae2c6efa6b9d3eae1bc1840f4d004aa30f5cb419ff  arc_gnu_2018.03_prebuilt_uclibc_be_arc700_linux_install.tar.gz
-sha256 8e736178343cea9a6cbe63a7d86fa9e81db6671f27fc8a9a7cea98cc6183bbcc  arc_gnu_2018.03_prebuilt_uclibc_le_archs_linux_install.tar.gz
-sha256 14024daa36f6ae7cf1e474780687e79af5aaa35d374b077f7036685d7eab3d72  arc_gnu_2018.03_prebuilt_uclibc_be_archs_linux_install.tar.gz
+# From https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/tag/arc-2018.09-release
+sha256 324b422eec3b9b36ea64c9e13167a4467fc13ab230eff34f2fa785039b460c16  arc_gnu_2018.09_prebuilt_uclibc_le_arc700_linux_install.tar.gz
+sha256 b0299ad9be0c300237789e5bf8e45d72bf040aab00c3718fbdb4160b75d2ed8f  arc_gnu_2018.09_prebuilt_uclibc_be_arc700_linux_install.tar.gz
+sha256 d1a4c039416b3da4d94ea066f861cc96ec60afec9c2bab1b2e937555b5e05238  arc_gnu_2018.09_prebuilt_uclibc_le_archs_linux_install.tar.gz
+sha256 a519ed3686dc8e3c5f86646988d38647aa039f4af3204d9b7e84efa26cd37221  arc_gnu_2018.09_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 = 2018.03
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_VERSION = 2018.09
 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)