riscv: mm: Don't use %pK through printk

Restricted pointers ("%pK") are not meant to be used through printk().
It can unintentionally expose security sensitive, raw pointer values.

Use regular pointer formatting instead.

Link: https://lore.kernel.org/lkml/20250113171731-dc10e3c1-da64-4af0-b767-7c7070468023@linutronix.de/
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20250217-restricted-pointers-riscv-v1-1-72a078076a76@linutronix.de
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>

arch/riscv/mm/physaddr.c

@@ -12,7 +12,7 @@ phys_addr_t __virt_to_phys(unsigned long x)
 	 * Boundary checking aginst the kernel linear mapping space.
 	 */
 	WARN(!is_linear_mapping(x) && !is_kernel_mapping(x),
-	     "virt_to_phys used for non-linear address: %pK (%pS)\n",
+	     "virt_to_phys used for non-linear address: %p (%pS)\n",
 	     (void *)x, (void *)x);
 
 	return __va_to_pa_nodebug(x);