mpc52xx: add missing kernel config symbol

SVN-Revision: 18881

target/linux/mpc52xx/config-2.6.30

@@ -155,6 +155,7 @@ CONFIG_OF=y
 # CONFIG_PACKET_MMAP is not set
 CONFIG_PAGEFLAGS_EXTENDED=y
 CONFIG_PAGE_OFFSET=0xc0000000
+# CONFIG_PATA_MPC52xx is not set
 # CONFIG_PARTITION_ADVANCED is not set
 CONFIG_PCI_DOMAINS=y
 # CONFIG_PCIEPORTBUS is not set