Downsize the kernel.

- Removed CD/DVD related FS.
- Removed MS related FS, e.g. FAT, VFAT, NTFS.
- Removed phone support.
- Reduced the image size by 600KB.
- Add debug fs.
- Remove the unused vt console.

Change-Id: I2d5a483b2f12c53bd3424a96ffa450ccd3d3a2d6
diff --git a/arch/arm/configs/mv88f6601_defconfig b/arch/arm/configs/mv88f6601_defconfig
index c84c793..fcc4a17 100755
--- a/arch/arm/configs/mv88f6601_defconfig
+++ b/arch/arm/configs/mv88f6601_defconfig
@@ -981,7 +981,7 @@
 # CONFIG_NETPOLL is not set
 # CONFIG_NET_POLL_CONTROLLER is not set
 # CONFIG_ISDN is not set
-CONFIG_PHONE=y
+# CONFIG_PHONE is not set
 # CONFIG_PHONE_IXJ is not set
 
 #
@@ -1023,7 +1023,7 @@
 #
 CONFIG_VT=y
 CONFIG_CONSOLE_TRANSLATIONS=y
-CONFIG_VT_CONSOLE=y
+# CONFIG_VT_CONSOLE is not set
 CONFIG_HW_CONSOLE=y
 # CONFIG_VT_HW_CONSOLE_BINDING is not set
 # CONFIG_DEVKMEM is not set
@@ -1333,20 +1333,19 @@
 #
 # CD-ROM/DVD Filesystems
 #
-CONFIG_ISO9660_FS=m
+# CONFIG_ISO9660_FS is not set
 # CONFIG_JOLIET is not set
 # CONFIG_ZISOFS is not set
-CONFIG_UDF_FS=m
-CONFIG_UDF_NLS=y
+# CONFIG_UDF_FS is not set
+# CONFIG_UDF_NLS is not set
 
 #
 # DOS/FAT/NT Filesystems
 #
-CONFIG_FAT_FS=m
-CONFIG_MSDOS_FS=m
+# CONFIG_FAT_FS is not set
+# CONFIG_MSDOS_FS is not set
 # CONFIG_VFAT_FS is not set
-CONFIG_FAT_DEFAULT_CODEPAGE=437
-CONFIG_NTFS_FS=m
+# CONFIG_NTFS_FS is not set
 # CONFIG_NTFS_DEBUG is not set
 # CONFIG_NTFS_RW is not set
 
@@ -1491,7 +1490,7 @@
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_STRIP_ASM_SYMS is not set
 # CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
+CONFIG_DEBUG_FS=y
 # CONFIG_HEADERS_CHECK is not set
 # CONFIG_DEBUG_KERNEL is not set
 CONFIG_DEBUG_BUGVERBOSE=y