riscv: use pr_info and friends

Use the pr_info and pr_err macros instead of printk with explicit log
levels.

Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>

arch/riscv/kernel/setup.c

@@ -76,19 +76,19 @@ static void __init setup_initrd(void)
 	unsigned long size;
 
 	if (initrd_start >= initrd_end) {
-		printk(KERN_INFO "initrd not found or empty");
+		pr_info("initrd not found or empty");
 		goto disable;
 	}
 	if (__pa(initrd_end) > PFN_PHYS(max_low_pfn)) {
-		printk(KERN_ERR "initrd extends beyond end of memory");
+		pr_err("initrd extends beyond end of memory");
 		goto disable;
 	}
 
 	size =  initrd_end - initrd_start;
 	memblock_reserve(__pa(initrd_start), size);
 	initrd_below_start_ok = 1;
 
-	printk(KERN_INFO "Initial ramdisk at: 0x%p (%lu bytes)\n",
+	pr_info("Initial ramdisk at: 0x%p (%lu bytes)\n",
 		(void *)(initrd_start), size);
 	return;
 disable: