RISC-V: Fix minor checkpatch issues.

While working on the patches, I found some minor checkpatch issues.
Signed-off-by: NAtish Patra <atish.patra@wdc.com>
Signed-off-by: NPalmer Dabbelt <palmer@sifive.com>

arch/riscv/kernel/smp.c

@@ -42,7 +42,7 @@ unsigned long __cpuid_to_hartid_map[NR_CPUS] = {
 
 void __init smp_setup_processor_id(void)
 {
-       cpuid_to_hartid_map(0) = boot_cpu_hartid;
+	cpuid_to_hartid_map(0) = boot_cpu_hartid;
 }
 
 /* A collection of single bit ipi messages.  */
@@ -53,7 +53,7 @@ static struct {
 
 int riscv_hartid_to_cpuid(int hartid)
 {
-	int i = -1;
+	int i;
 
 	for (i = 0; i < NR_CPUS; i++)
 		if (cpuid_to_hartid_map(i) == hartid)