package/gcc: enable gcc 9.1 for ork1 (openrisc)

openrisc support has been added with gcc 9.1.
Keep for now the old gcc 5 fork for ork1.

https://gcc.gnu.org/gcc-9/changes.html

Tested using qemu_or1k_defconfig.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/gcc/Config.in.host

@@ -86,8 +86,6 @@ config BR2_GCC_VERSION_8_X
 
 config BR2_GCC_VERSION_9_X
 	bool "gcc 9.x"
-	# Broken or unsupported architectures
-	depends on !BR2_or1k
 	# powerpc spe support has been deprecated since gcc 8.x.
 	# https://gcc.gnu.org/ml/gcc/2018-04/msg00102.html
 	depends on !BR2_powerpc_SPE

package/gcc/gcc.mk

@@ -13,7 +13,7 @@ GCC_VERSION = $(call qstrip,$(BR2_GCC_VERSION))
 ifeq ($(BR2_GCC_VERSION_ARC),y)
 GCC_SITE = $(call github,foss-for-synopsys-dwc-arc-processors,gcc,$(GCC_VERSION))
 GCC_SOURCE = gcc-$(GCC_VERSION).tar.gz
-else ifeq ($(BR2_or1k),y)
+else ifeq ($(BR2_GCC_VERSION_OR1K),y)
 GCC_SITE = $(call github,openrisc,or1k-gcc,$(GCC_VERSION))
 GCC_SOURCE = gcc-$(GCC_VERSION).tar.gz
 else ifeq ($(BR2_csky),y)
@@ -180,7 +180,7 @@ else
 HOST_GCC_COMMON_CONF_OPTS += --without-isl --without-cloog
 endif
 
-ifeq ($(BR2_arc)$(BR2_or1k),y)
+ifeq ($(BR2_arc)$(BR2_GCC_VERSION_OR1K),y)
 HOST_GCC_COMMON_DEPENDENCIES += host-flex host-bison
 endif