PCI: ibmphp: Remove unneeded break

A break is not needed if it is preceded by a return.

Based on Tom Rix's treewide patch; this instance extracted from Joe
Perches' list.

Link: https://lore.kernel.org/r/[e-mail]
Link: https://lore.kernel.org/r/f530b7aeecbbf9654b4540cfa20023a4c2a11889.camel@perches
.com
Signed-off-by: Bjorn Helgaas <[e-mail]>
Cc: Tom Rix <[e-mail]>
Cc: Joe Perches <[e-mail]>

drivers/pci/hotplug/ibmphp_pci.c

···
 				default:
 					err("MAJOR PROBLEM!!!!, header type not supported? %x\n", hdr_type);
 					return -ENXIO;
-					break;
 			}	/* end of switch */
 		}	/* end of valid device */
 	}	/* end of for */
···
 				default:
 					err("MAJOR PROBLEM!!!! Cannot read device's header\n");
 					return -1;
-					break;
 			}	/* end of switch */
 		}	/* end of valid device */
 	}	/* end of for */