I think the best bet is likely to override the linker script. You can either dump the built in one by doing:
qcc -Vgcc_ntoppcbe -o<bin> bin.c -Wl,--verbose=5
Then save the output of the linker script with the modified address you wish (I've attached an example).
Alternatively, it appears you might be able to create a smaller linker script that enhances the built in one using the INSERT rule to augment the overall linker script with the different base address.
NOTE:
This entry has been validated against the SDP version listed above. Use
caution when considering this advice for any other SDP version. For
supported releases, please reach out toQNX Technical Support if you have any questions/concerns.