Speed up a slow find command

  find .... -name oem\*.prop

Kati can't emulate this command -- it can't currently handle backslashes
in the middle of an argument, only at the beginning or end. So this
falls back to actually calling find, which can take a few seconds if
you've got a large vendor tree. Just switch all of these over to quoted
arguments instead of escaping the *.

Bug: 78020936
Test: Check out/soong.log for timing info
Test: out/build-taimen.ninja is identical
Change-Id: Ifde75948f677ad95107d9419a462649024f544b8