[EG916Q-GL] Executing AT+QPOWD=1 reports "POWERED DOWN" in all dlci channels

Tested-on: EG916QGLLGR01A05M04_01.004.01.004

When I execute AT+QPOWD=1, I received “POWERED DOWN” in all dlci channels, this is wrong,
it should only response to the channel sending the command.

Below is the raw log I received from the module after executing “AT+QPOWD”:
(It sends “POWERED DOWN” to dlci 1,2, and 3)
f9 01 ef 09 e3 05 07 01 9a f9 f9 05 ef 21 0d 0a
50 4f 57 45 52 45 44 20 44 4f 57 4e 0d 0a 6e f9
f9 09 ef 21 0d 0a 50 4f 57 45 52 45 44 20 44 4f
57 4e 0d 0a e9 f9 f9 0d ef 21 0d 0a 50 4f 57 45
52 45 44 20 44 4f 57 4e 0d 0a 2b f9

PS. Only AT+QPOWD has this issue, other commands look good.

Hi
I had send you the latest version and hope that solve this issue.