package/xmrig: introduce BR2_PACKAGE_XMRIG_ARCH_SUPPORTS

This allows to avoid duplicating the list of architectures supported
by xmrig.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/xmrig/Config.in

@@ -1,7 +1,14 @@
+# archs officially supported by upstream
+config BR2_PACKAGE_XMRIG_ARCH_SUPPORTS
+	bool
+	default y if BR2_ARM_CPU_ARMV7A
+	default y if BR2_aarch64
+	default y if BR2_x86_64
+	default y if BR2_i386
+
 config BR2_PACKAGE_XMRIG
 	bool "xmrig"
-	# archs officially supported by upstream
-	depends on BR2_ARM_CPU_ARMV7A || BR2_aarch64 || BR2_x86_64 || BR2_i386
+	depends on BR2_PACKAGE_XMRIG_ARCH_SUPPORTS
 	depends on BR2_USE_MMU # libuv
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libuv
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # libuv
@@ -16,7 +23,7 @@ config BR2_PACKAGE_XMRIG
 	  https://xmrig.com
 
 comment "xmrig needs a glibc or musl toolchain w/ NPTL, dynamic library, C++"
-	depends on BR2_ARM_CPU_ARMV7A || BR2_aarch64 || BR2_x86_64 || BR2_i386
+	depends on BR2_PACKAGE_XMRIG_ARCH_SUPPORTS
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || \