toolchain: bump ARC tools to arc-2019.09-rc1

This commit bumps ARC toolchain to arc-2019.09-rc1.
We want to test how new toolchain-rc1 builds packages,
so we can make fixes before release of toolcain.

ARC GNU tools of version arc-2019.09-rc1 bring some quite significant changes like:
* Binutils v2_33.20191002 with additional ARC patches
* GCC 9.2.0 with additional ARC patches
* glibc 2.30 with additional ARC patches

Please note that it is a release candidate and it might contain some breakages,
please don't use it for production builds.

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

package/gdb/Config.in.host

@@ -67,7 +67,7 @@ endif
 # If cross-gdb is not enabled, the latest working version is chosen.
 config BR2_GDB_VERSION
 	string
-	default "arc-2019.09-eng002-gdb" if BR2_arc
+	default "arc-2019.09-rc1-gdb" if BR2_arc
 	default "4ecb98fbc2f94dbe01b69384afbc515107de73df" if BR2_csky
 	default "8.1.1"    if BR2_GDB_VERSION_8_1
 	default "8.2.1"    if BR2_GDB_VERSION_8_2 || !BR2_PACKAGE_HOST_GDB

package/gdb/arc-2018.09-gdb/0001-gdb-Fix-ia64-defining-TRAP_HWBKPT-before-including-g.patch

@@ -1,52 +0,0 @@
-From e213d8e1b5317389c3beee648811bc649d62d743 Mon Sep 17 00:00:00 2001
-From: James Clarke <jrtc27@jrtc27.com>
-Date: Fri, 19 Jan 2018 17:22:49 +0000
-Subject: [PATCH] gdb: Fix ia64 defining TRAP_HWBKPT before including
- gdb_wait.h
-
-On ia64, gdb_wait.h eventually includes siginfo-consts-arch.h, which
-contains an enum with TRAP_HWBKPT, along with a #define. Thus we cannot
-define TRAP_HWBKPT to 4 beforehand, and so gdb_wait.h must be included
-earlier; include it from linux-ptrace.h so it can never come afterwards.
-
-gdb/ChangeLog:
-
-	* nat/linux-ptrace.c: Remove unnecessary reinclusion of
-	gdb_ptrace.h, and move including gdb_wait.h ...
-	* nat/linux-ptrace.h: ... to here.
-
-[Backport from upstream 5a6c3296a7a90694ad4042f6256f3da6d4fa4ee8]
-Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
----
- gdb/nat/linux-ptrace.c | 2 --
- gdb/nat/linux-ptrace.h | 1 +
- 2 files changed, 1 insertion(+), 2 deletions(-)
-
-diff --git a/gdb/nat/linux-ptrace.c b/gdb/nat/linux-ptrace.c
-index 438177fa7622..1240eead0d50 100644
---- a/gdb/nat/linux-ptrace.c
-+++ b/gdb/nat/linux-ptrace.c
-@@ -21,8 +21,6 @@
- #include "linux-procfs.h"
- #include "linux-waitpid.h"
- #include "buffer.h"
--#include "gdb_wait.h"
--#include "gdb_ptrace.h"
- #ifdef HAVE_SYS_PROCFS_H
- #include <sys/procfs.h>
- #endif
-diff --git a/gdb/nat/linux-ptrace.h b/gdb/nat/linux-ptrace.h
-index 59549452c099..6faa89b22a0e 100644
---- a/gdb/nat/linux-ptrace.h
-+++ b/gdb/nat/linux-ptrace.h
-@@ -21,6 +21,7 @@
- struct buffer;
- 
- #include "nat/gdb_ptrace.h"
-+#include "gdb_wait.h"
- 
- #ifdef __UCLIBC__
- #if !(defined(__UCLIBC_HAS_MMU__) || defined(__ARCH_HAS_MMU__))
--- 
-2.19.2
-

package/gdb/gdb.hash

@@ -4,7 +4,7 @@ sha512  2aa81cfd389bb48c35d7d9f95cc10e88b4f7ad4597bdde0f8f1fd312f60f10d9fb2cc6e5
 sha512  47ac074d20a09a3fac8f4a41dce0a0cbe6ef702f7dc21ba8b7d650d306128dcae481e9a16bf65e596b3a541dc82ae57c02bcbb786d551b4ef3e2917b9b6f0ae1	gdb-8.3.tar.xz
 
 # Locally calculated (fetched from Github)
-sha512  2625e568ec85652cc223409162b4bd97dd292c5f7a597a57ccb2c6c88a69dfc5fbcf1f0750716ab94c932fa97c8900732f7d2fec940973bc3d6c88ef3f8c6d26 	gdb-arc-2019.09-eng002-gdb.tar.gz
+sha512  a2b83e949638fa27d3d2b971e3a77902050191d517c5b9ca1273d182b8c3b9da2c993a0dbaf76e18d2603e59a1af6618dff830a3905f22272af68fcbb49d58a8 	gdb-arc-2019.09-rc1-gdb.tar.gz
 
 # Locally calculated (fetched from https://github.com/c-sky/binutils-gdb)
 sha512  c421e1f3c0d6cfb3c04544573c0c4b0075c8d8e3d563c6c234fcc1e4c2167ab203d1e57aec3b58abd348dc46f8cf9b47b753d3a43dba3ea970c9c9a6bd78c07b	gdb-4ecb98fbc2f94dbe01b69384afbc515107de73df.tar.gz