Encode request:
VGATHERQPD MEM0:qword ptr [RAX+YMM1*1], MEM_WIDTH:8, MODE:2, REG0:YMM0, REG1:YMM2, SMODE:2, VL:1
OPERAND ORDER: REG0 MEM0 REG1 

Encodable! C4E2ED930408