libgpg-error: fix pkgconfig.patch

libgpg-error: fix pkgconfig.patch

Typo in pkgconfig.patch:
   -Libs: -L{libdir} -lgpg-error
vs.
   +Libs: -L${libdir} -lgpg-error

This patch fixes failure in libgcrypt-native do_configure.
| ../x86_64-linux-libtool: line 6001: cd: {libdir}: No such file or directory
| x86_64-linux-libtool: link: cannot determine absolute directory name of `{libdir}'

(From OE-Core rev: 66293fe13e25bb7a946db5a4b337d5bfcb015091)

Signed-off-by: Tim Orling <TicoTimo@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>