Avoid casting the type to integer in user build.

Avoid casting the type to integer in user build.

When choosecombo variant is 'user', the complier
will throw a Werror: assignment makes integer from
pointer without a cast.

Bug 200341041

Change-Id: Ie81536c099cbed83b7b3fcabe659226e54fec209
Reviewed-on: https://git-master.nvidia.com/r/1585164
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Hayden Du <haydend@nvidia.com>
Tested-by: Hayden Du <haydend@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>