msm: rndis_ipa: change network stack notification sequence

This commit changes the order of network stack queue operations.
The network start notification is changed to occur only after
the driver internal state is updated.
Without this change the network stack will start transmitting
data before the internal state is changed which will cause
these packets to be dropped on transmit path due to incorrect
internal state.

Change-Id: I336a1c40cf8913f7f31ab26b54fb05263b544b74
Signed-off-by: Talel Shenhar <tatias@codeaurora.org>