libgo: install internal/reflectlite.gox

This makes it possible to use gccgo to bootstrap Go 1.14.
If we don't install this, gccgo can't compile the sort package.

Fixes GCC PR go/93679

Change-Id: Ib224e43ca7cd0a0e16495900a03f609d189ebe50
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/219617
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2 files changed