Remove uses of %{PACKAGE_VERSION} and %{PACKAGE_RELEASE} from specs

[Panu Matilainen]

Grepping through spec files from CVS devel/ shows there are a handful of 
package still using %{PACKAGE_VERSION} and %{PACKAGE_RELEASE} macros. 
These were considered "backwards compatibility stuff" in 1998 (yes, eleven 
years ago) already, please change them to use the %{version} and 
%{release} macros instead.

The packages using these ancient macros are:
- kernel
- kernel-xen-2.6 (dead package?)
- glibc32, glibc64 (dead packages?)
- fmt-ptrn
- libunwind

Rpm >= 4.8.x removes the support for the ancient %{PACKAGE_*} macros so 
packages still using them will fail to build with it.

 	- Panu -