msm: ipa3: lift the HOLB only when WDI enable

We should only remove HOLD on WDI pipes
after getting WDI_ENABLE, not on WDI_CONNECT
or those Tx pkts will stock in WLAN tx pipes.

Change-Id: I23a87afbc5b7a6fe8abbab16fbfe2caab7535f8e
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>