riscv: hw: Remove the unnecessary include of target/riscv/cpu.h

The inclusion of "target/riscv/cpu.h" is unnecessary in various
sifive model drivers.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>

hw/riscv/sifive_prci.c

@@ -22,7 +22,6 @@
 #include "hw/sysbus.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
-#include "target/riscv/cpu.h"
 #include "hw/hw.h"
 #include "hw/riscv/sifive_prci.h"
 

hw/riscv/sifive_test.c

@@ -23,7 +23,6 @@
 #include "qemu/log.h"
 #include "qemu/module.h"
 #include "sysemu/runstate.h"
-#include "target/riscv/cpu.h"
 #include "hw/hw.h"
 #include "hw/riscv/sifive_test.h"
 

hw/riscv/sifive_uart.c

@@ -22,7 +22,6 @@
 #include "hw/sysbus.h"
 #include "chardev/char.h"
 #include "chardev/char-fe.h"
-#include "target/riscv/cpu.h"
 #include "hw/hw.h"
 #include "hw/irq.h"
 #include "hw/riscv/sifive_uart.h"