add missing Kernel symbol spotted by buildbot

SVN-Revision: 31232

target/linux/x86/config-default

@@ -67,6 +67,7 @@ CONFIG_CRC16=y
 # CONFIG_DCDBAS is not set
 CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_DEBUG_MEMORY_INIT=y
+# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
 CONFIG_DECOMPRESS_BZIP2=y
 CONFIG_DECOMPRESS_GZIP=y
 CONFIG_DECOMPRESS_LZMA=y
@@ -246,10 +247,6 @@ CONFIG_OUTPUT_FORMAT="elf32-i386"
 CONFIG_PAGEFLAGS_EXTENDED=y
 CONFIG_PAGE_OFFSET=0xC0000000
 # CONFIG_PARAVIRT_GUEST is not set
-# CONFIG_PATA_MPIIX is not set
-# CONFIG_PATA_OLDPIIX is not set
-# CONFIG_PATA_SC1200 is not set
-# CONFIG_PATA_VIA is not set
 # CONFIG_PC8736x_GPIO is not set
 # CONFIG_PC87413_WDT is not set
 CONFIG_PCI=y