powerpc/powernv: Fix comment style and spelling

Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/powernv/pci-ioda.c

@@ -3769,10 +3769,11 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	if (rc)
 		pr_warning("  OPAL Error %ld performing IODA table reset !\n", rc);
 
-	/* If we're running in kdump kerenl, the previous kerenl never
+	/*
+	 * If we're running in kdump kernel, the previous kernel never
 	 * shutdown PCI devices correctly. We already got IODA table
 	 * cleaned out. So we have to issue PHB reset to stop all PCI
-	 * transactions from previous kerenl.
+	 * transactions from previous kernel.
 	 */
 	if (is_kdump_kernel()) {
 		pr_info("  Issue PHB reset ...\n");