Fix reanalysis after full build

Blueprint bootstrap and Soong each create rules to install
blueprint_go_binary modules to the same location, but with different
command lines.  Binaries used during bootstrap are installed using
the bootstrap rule, but then get reinstalled during a full build via
the blueprint_tools phony that is a dependency of droid.  This
changes the command line used for the rule stored in .ninja_log,
and then on the next bootstrap ninja will rerun the binaries,
triggering reanalysis.

As a quick fix, don't create install rules for loadplugins and
soong_build.  A more permanent fix may be to move the bootstrap
installation to a different location, but that will require more
testing.

Bug: 366291149
Test: m blueprint_tools && m blueprint_tools
Flag; EXEMPT bugfix

Change-Id: Ib7f2910976f4b5e6add2128ce0b2a5d10445a53c