toolchain/arc: update to the most recent release arc-2017.03

arc-2017.03 is the most recent release toolchain for ARC cores
and it is based on upstream Binutils 2.28 and GCC 6.3.0

Signed-off-by: Evgeniy Didin <Evgeniy.Didin@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: John Crispin <john@phrozen.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>

toolchain/gcc/Config.in

@@ -2,14 +2,14 @@
 
 choice
 	prompt "GCC compiler Version" if TOOLCHAINOPTS
-	default GCC_USE_VERSION_6_2_ARC if arc
+	default GCC_USE_VERSION_6_3_ARC if arc
 	default GCC_USE_VERSION_5
 	help
 	  Select the version of gcc you wish to use.
 
-	config GCC_USE_VERSION_6_2_ARC
-		select GCC_VERSION_6_2_ARC
-		bool "gcc 6.2.x with support of ARC cores"
+	config GCC_USE_VERSION_6_3_ARC
+		select GCC_VERSION_6_3_ARC
+		bool "gcc 6.3.x with support of ARC cores"
 		depends on arc
 
 	config GCC_USE_VERSION_5

toolchain/gcc/Config.version

@@ -1,14 +1,14 @@
-config GCC_VERSION_6_2_ARC
+config GCC_VERSION_6_3_ARC
 	default y if (!TOOLCHAINOPTS && arc)
 	bool
 
 config GCC_VERSION
 	string
-	default "arc-2016.09-release"   if GCC_VERSION_6_2_ARC
+	default "arc-2017.03-release"   if GCC_VERSION_6_3_ARC
 	default "6.3.0"         if GCC_USE_VERSION_6
 	default "7.1.0"         if GCC_USE_VERSION_7
 	default "5.4.0"
 
-config GCC_VERSION_6_2
+config GCC_VERSION_6_3
 	bool
-	default y	if GCC_VERSION_6_2_ARC
+	default y	if GCC_VERSION_6_3_ARC

toolchain/gcc/common.mk

@@ -40,12 +40,12 @@ ifeq ($(PKG_VERSION),7.1.0)
   PKG_HASH:=8a8136c235f64c6fef69cac0d73a46a1a09bb250776a050aec8f9fc880bebc17
 endif
 
-ifneq ($(CONFIG_GCC_VERSION_6_2_ARC),)
-    PKG_VERSION:=6.2.1
+ifneq ($(CONFIG_GCC_VERSION_6_3_ARC),)
+    PKG_VERSION:=6.3.0
     PKG_SOURCE_URL:=https://github.com/foss-for-synopsys-dwc-arc-processors/gcc/archive/$(GCC_VERSION)
     PKG_SOURCE:=$(PKG_NAME)-$(GCC_VERSION).tar.gz
-    PKG_HASH:=d6f842dd266ccb0d5a53b51e2b2951503569f2ff3c84f81b2a1d9fea109ec077
-    PKG_REV:=2016.09
+    PKG_HASH:=b7223e134199b1a6f71de629da6aa845790e55d28e9892143dde09b1bc878110
+    PKG_REV:=2017.03-release
     GCC_DIR:=gcc-arc-$(PKG_REV)
     HOST_BUILD_DIR = $(BUILD_DIR_HOST)/$(PKG_NAME)-$(GCC_VERSION)
 endif