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>

MAINTAINERS

@@ -266,6 +266,7 @@ S: Maintained
 F: target/riscv/
 F: hw/riscv/
 F: include/hw/riscv/
+F: linux-user/host/riscv32/
 F: disas/riscv.c
 
 S390

linux-user/host/riscv32/hostdep.h

@@ -0,0 +1,11 @@
+/*
+ * hostdep.h : things which are dependent on the host architecture
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef RISCV32_HOSTDEP_H
+#define RISCV32_HOSTDEP_H
+
+#endif