add display_primary* to sysprop

The display_primary* properties is added for getDisplayNativePrimaries
function. Since this function is changed from configstore to sysrpop for
removing configstore 1.2

Bug: 124531214
Test: m -j && boot test && atest libsurfaceflinger_unittest

Change-Id: Ibe22aadab1095e624dc498a743f343f301dc4ea6