lexmark-fax-pnh: use unversioned libchrome libraray.

Libchrome is changing pkg-config and .so library name from
xxxx-${libbase_ver}.{pc,so} to xxx.{pc,so}.

Libchrome uprev rebuild will be handled by ebuild subslot change. And
there's no need to install multiple libchrome. Keeping libbase_ver
suffix will cause troubles on linking libraries when developers wants to
test locally emerge a-single-package without build_packages, after a
libchrome uprev. Especially in a case a package depends on another
package(library), and both depends on libchrome. Thus, removing
libbase_ver from suffix.

BUG=chromium:920513
TEST=CQ

Change-Id: I1bc33715d89925770b5b28c412e108cce814e0e6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/lexmark-fax-pnh/+/2501422
Reviewed-by: Brian Malcolm <bmalcolm@chromium.org>
Reviewed-by: Sean Kau <skau@chromium.org>
Commit-Queue: Qijiang Fan <fqj@google.com>
Tested-by: Qijiang Fan <fqj@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index 59061fb..b721c91 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -13,7 +13,7 @@
 
 pkg_config("target_defaults") {
   pkg_deps = [
-    "libchrome-${libbase_ver}",
+    "libchrome",
   ]
 }
 
@@ -28,7 +28,7 @@
 
 if (use.test) {
   pkg_config("test_config") {
-    pkg_deps = [ "libchrome-test-${libbase_ver}" ]
+    pkg_deps = [ "libchrome-test" ]
   }
 
   executable("token_replacer_testrunner") {