toolchain: Bump ARC tools to arc-2017.03 release

This commit finally bumps ARC toolchain to arc-2017.03 release.
More info on this release could be found here:
https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/tag/arc-2017.03

Note mentioned above web-page is not yet populated but should be very soon.
As a safe fall-back interested could refer to RC2 page here:
https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/tag/arc-2017.03-rc2

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

package/binutils/Config.in.host

@@ -23,7 +23,7 @@ endchoice
 
 config BR2_BINUTILS_VERSION
 	string
-	default "arc-2017.03-rc2"	if BR2_arc
+	default "arc-2017.03"	if BR2_arc
 	default "2.26.1"	if BR2_BINUTILS_VERSION_2_26_X
 	default "2.27"		if BR2_BINUTILS_VERSION_2_27_X
 	default "2.28"		if BR2_BINUTILS_VERSION_2_28_X

package/binutils/binutils.hash

@@ -4,4 +4,4 @@ sha512	cf276f84935312361a2ca077e04d0b469d23a3aed979d8ba5d92ea590904ffb2c2e7ed12c
 sha512	ede2e4e59a800260eea8c14eafbaee94e30abadafd5c419a3370f9f62213cf027d6400a1d4970b6958bd4d220e675dcd483a708107016e7abd5c99d7392ba8fd  binutils-2.28.tar.bz2
 
 # Locally calculated (fetched from Github)
-sha512  577fbd59dc8d41022ed511b86f3afc49af48ab798a7b187411a466621dc6247dff7dd84fa110ca278f09a9e523d8bdb892a233c00bf47d11b92be70e7278efe9  binutils-arc-2017.03-rc2.tar.gz
+sha512  07d5639e74eafe8fced259870c1a7dedee67c534573dda53fb78ee1ffeec9e17479fdde41dccd03b1cf0248023acbef7f66013398b2f722e4a8891ac680d1d16  binutils-arc-2017.03.tar.gz

package/binutils/binutils.mk

@@ -9,7 +9,7 @@
 BINUTILS_VERSION = $(call qstrip,$(BR2_BINUTILS_VERSION))
 ifeq ($(BINUTILS_VERSION),)
 ifeq ($(BR2_arc),y)
-BINUTILS_VERSION = arc-2017.03-rc2
+BINUTILS_VERSION = arc-2017.03
 else
 BINUTILS_VERSION = 2.27
 endif