ims_ipsec_pcscf: fixed defects and warnings:

[alexyosifov]

• fixed a defect reported from Coverity Scan - Concurrent data access
  violations in spi_gen.c for spi_data->spi_val.
• in create_ipsec_tunnel() return -1 when unable to convert ip address.
• in ipsec_create() go to cleanup instead return -1 when get request
  for reply fails. Fixed debug message for that error.

Pre-Submission Checklist

• Commit message has the format required by CONTRIBUTING guide
• Commits are split per component (core, individual modules, libs, utils, ...)
• Each component has a single commit (if not, squash them into one commit)
• No commits to README files for modules (changes must be done to docbook files
  in doc/ subfolder, the README file is autogenerated)

Type Of Change

• Small bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds new functionality)
• Breaking change (fix or feature that would change existing functionality)

Checklist:

• PR should be backported to stable branches
• Tested changes locally
• Related to issue #XXXX (replace XXXX with an open issue number)

Description

[henningw]

Thank you, merged and backported to 5.3. Just FYI - due to the extensions done for release 5.3 it did not apply cleanly to 5.2 and 5.1.