linux-user/riscv: Add the CPU type as a comment

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>

linux-user/riscv/target_elf.h

@@ -9,6 +9,7 @@
 #define RISCV_TARGET_ELF_H
 static inline const char *cpu_get_model(uint32_t eflags)
 {
+    /* TYPE_RISCV_CPU_ANY */
     return "any";
 }
 #endif