RISC-V: paravirt: steal_time should be static

steal_time is not used outside paravirt.c, make it static,
as sparse suggested.

Fixes: fdf68ac ("RISC-V: paravirt: Implement steal-time support")
Signed-off-by: Andrew Jones <[email protected]>
Reviewed-by: Atish Patra <[email protected]>
Signed-off-by: Anup Patel <[email protected]>

Author: Andrew Jones

arch/riscv/kernel/paravirt.c

@@ -41,7 +41,7 @@ static int __init parse_no_stealacc(char *arg)
 
 early_param("no-steal-acc", parse_no_stealacc);
 
-DEFINE_PER_CPU(struct sbi_sta_struct, steal_time) __aligned(64);
+static DEFINE_PER_CPU(struct sbi_sta_struct, steal_time) __aligned(64);
 
 static bool __init has_pv_steal_clock(void)
 {