Mbed-os: Cellular: Virtual function call in constructor

[ghseb]

Description

AT_CellularDevice's constructor calls get_at_handler() which calls get_send_delay(). get_send_delay() is virtual and therefore should not be called in a constructor. I observed that the method returned the default send delay of zero even if the method is overwritten (by GEMALTO_CINTERION) in my case.

Compiler is IAR 8.40 (which is not officially supported).
Mbed Version is 5.13.1.

Issue request type

[ ] Question
[ ] Enhancement
[x] Bug

[ciarmcom]

Internal Jira reference: https://jira.arm.com/browse/MBOCUSTRIA-1540

[pilotak]

@0xc0170 Why is this resolved? the issue is still there

[0xc0170]

This one should: https://github.com/ARMmbed/mbed-os/commit/b849bc1e3de20d522ef50f90a0d83f20045685f2 ?
cc @mirelachirica

[ghseb]

As far as i can see b849bc1 fixes the issue.