Assembler accepts but mistranslates BLLT in v7 thumb mode

For v7 thumb 2 mode, the assembler should accept conditional instructions and automatically generate the appropriate IT instruction preceding it.

For v7 thumb mode, the assembler should accept the BLLT instruction, which is BL conditioned with LT, and turn it into "IT LT" followed by "BL LT." However, it accepts the instruction and turns it into "BL", which is wrong.