The mobile-broadband-provider-info.pc file is installed into a non-arch directory
yet contains libdir which can vary depending on which multilib is configured.
The .pc file does not require libdir so remove this to fix multilib builds.

Upstream-Status: Backport [8109fcd3c7299fae859fb891ff416927581a9955]
Signed-off-by: Zhixiong Chi <zhixiong.chi@windriver.com>

Index: git/mobile-broadband-provider-info.pc.in
===================================================================
--- git.orig/mobile-broadband-provider-info.pc.in	2018-08-07 13:09:31.811364063 +0800
+++ git/mobile-broadband-provider-info.pc.in	2018-08-10 17:49:25.645288320 +0800
@@ -1,6 +1,5 @@
 prefix=@prefix@
 exec_prefix=@exec_prefix@
-libdir=@libdir@
 datarootdir = @datarootdir@
 pkgdatadir=${datarootdir}/@PACKAGE@
 includedir=@includedir@