linux-user: Add host dependency for RISC-V 32-bit

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Michael Clark <mjc@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <76f8f9383a766dbcade883e897dec8cfef669799.1545246859.git.alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 180695f..067629b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -266,6 +266,7 @@
 F: target/riscv/
 F: hw/riscv/
 F: include/hw/riscv/
+F: linux-user/host/riscv32/
 F: disas/riscv.c
 
 S390