Revert "lenovo/t400/4.5-1564-g6fa36c9c2c-dirty/2017-04-16T13_28_27Z"

This reverts commit e5454d36ca2f96e452a228db9a1485bff2e8f32e.

The commit in question deletes a lot of unrelated files, and needs to be
reverted.
diff --git a/lenovo/t420/4.1-657-g2f225b9/2015-10-01T13:41:10Z/cbfs.txt b/lenovo/t420/4.1-657-g2f225b9/2015-10-01T13:41:10Z/cbfs.txt
new file mode 100644
index 0000000..fd77067
--- /dev/null
+++ b/lenovo/t420/4.1-657-g2f225b9/2015-10-01T13:41:10Z/cbfs.txt
@@ -0,0 +1,16 @@
+coreboot.rom: 8192 kB, bootblocksize 2984, romsize 8388608, offset 0x700000
+alignment: 64 bytes, architecture: x86
+
+Name                           Offset     Type         Size
+cmos.default                   0x700000   cmos_default 256
+cmos_layout.bin                0x700140   cmos_layout  1996
+fallback/dsdt.aml              0x700980   raw          13420
+config                         0x703e40   raw          336
+revision                       0x704000   raw          569
+(empty)                        0x704280   null         48408
+mrc.cache                      0x70ffc0   mrc_cache    65536
+(empty)                        0x720000   null         65368
+fallback/romstage              0x72ff80   stage        73252
+fallback/ramstage              0x741e40   stage        80730
+fallback/payload               0x755a00   payload      601719
+(empty)                        0x7e88c0   null         92952