RISC-V: Remove duplicated include in smpboot.c

./arch/riscv/kernel/smpboot.c: asm/cpufeature.h is included more than once.

Reported-by: Abaci Robot <[email protected]>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7086
Signed-off-by: Yang Li <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>

Author: Yang Li

arch/riscv/kernel/smpboot.c

@@ -28,7 +28,6 @@
 
 #include <asm/cpufeature.h>
 #include <asm/cpu_ops.h>
-#include <asm/cpufeature.h>
 #include <asm/irq.h>
 #include <asm/mmu_context.h>
 #include <asm/numa.h>