msm: ipa: fix error handling in case of modem sync message failure

The fix solves an issue in which not all error conditions were
checked when QMI_IPA_INIT_MODEM_DRIVER_REQ_V01 fails, and the
logic continues with the initialization/handshake process.

CRs-fixed: 760440
Change-Id: I1035cd10fe5b539c389ddfae80cc60ff2877278a
Signed-off-by: Sivan Reinstein <sivanr@codeaurora.org>
Acked-by: David Arinzon <darinzon@qti.qualcomm.com>