MIPS: Fix up inconsistency in panic() string argument.

Panic() invokes printk() to add a \n internally, so panic arguments should
not themselves end in \n.  Panic invocations in arch/mips and elsewhere
are inconsistently sometimes terminating in \n, sometimes not.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/pci/msi-octeon.c

@@ -162,7 +162,7 @@ msi_irq_allocated:
 		msg.address_hi = (0 + CVMX_NPEI_PCIE_MSI_RCV) >> 32;
 		break;
 	default:
-		panic("arch_setup_msi_irq: Invalid octeon_dma_bar_type\n");
+		panic("arch_setup_msi_irq: Invalid octeon_dma_bar_type");
 	}
 	msg.data = irq - OCTEON_IRQ_MSI_BIT0;