fix docs
Merge topic 'qcc-id' into next

94f33435 fix docs
Introduce QCC compiler id for that QNX platform compiler.

Introduce policy CMP0047 to control whether the new id is used.
Populate new module files to handle system includes and depfiles
when using the QCC compiler.

QNX toolchains in use in the wild use the g++ compiler driver
directly instead of the recommended qcc driver. Those toolchains
are not affected by this change.
Merge topic 'qcc-id' into next

858f57c0 Introduce QCC compiler id for that QNX platform compiler.