net/bnxt: add default identifiers to ULP mapper

net/bnxt: add default identifiers to ULP mapper

- Added ulp_mapper_init/deinit to allocate/deallocate mapper data for
  storing the default identifiers
- Modified the template_db to include the new opcode for accessing the
  default ids.
- Modified the result and key field builders to use the new opcode for
  writing the default ids into blobs

Reviewed-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Mike Baucom <michael.baucom@broadcom.com>
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>