package/kexec: enable on risc-v

Starting from version 2.0.32, kexec has support for the
risc-v architecture. The support was added in upstream commit [1].

[1] https://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git/commit/?id=b3fd54b022fe5ba09ebff184d4d22466672946cf

Signed-off-by: Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>
[Julien: add link to upstream commit adding support]
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/kexec/Config.in

@@ -5,7 +5,8 @@ config BR2_PACKAGE_KEXEC_ARCH_SUPPORTS
 		BR2_loongarch64 || \
 		BR2_mips || BR2_mips64 || BR2_mipsel || BR2_mips64el || \
 		BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le || \
-		BR2_sh4 || BR2_sh4a || BR2_aarch64 || BR2_s390x || BR2_m68k
+		BR2_sh4 || BR2_sh4a || BR2_aarch64 || BR2_s390x || BR2_m68k || \
+		BR2_riscv
 
 config BR2_PACKAGE_KEXEC
 	bool "kexec"