msm: ipa3: check the rx_door_bell value on disable

In WDI2.0, seeing some issue about rdy_ring_rp_va
is not equal to rdy_comp_ring_wp_va because wlan-fw
still update the doorbell after ipa host-driver
issue the CH_DISABLE cmd to ipa-uc. The fix is
to compare rdy_comp_ring_wp_va and rx_door_bell
values instead.

Change-Id: Ibe57c7d5ba9e45260c12528910f173e347259d7c
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>