MAINTAINERS: RISC-V: KVM: Add another kselftests path

With the introduction of the get-reg-list test for riscv, another
directory has been added that should be tracked by riscv kvm
maintainers.

Signed-off-by: Andrew Jones <[email protected]>
Reviewed-by: Haibo Xu <[email protected]>
Signed-off-by: Anup Patel <[email protected]>

Author: Andrew Jones

MAINTAINERS

@@ -11556,6 +11556,7 @@ F:	arch/riscv/include/asm/kvm*
 F:	arch/riscv/include/uapi/asm/kvm*
 F:	arch/riscv/kvm/
 F:	tools/testing/selftests/kvm/*/riscv/
+F:	tools/testing/selftests/kvm/riscv/
 
 KERNEL VIRTUAL MACHINE for s390 (KVM/s390)
 M:	Christian Borntraeger <[email protected]>