Update sysui aconfig to be visible to platform_testing

platform_testing needs access to the sysui aconfig flags

Add this particular package as visible.

Bug: 314823675
Flag: NONE
Test: that the build runs and platform_testing can utilize the aconfig flags
Change-Id: Iae0b2b5c009d46bbbc3c0e7d0d4edbd0f5b1e702