krb5: Updated (1.10.2 -> 1.10.7)
krb5: Updated (1.10.7 -> 1.12.1)
krb5: improved to cross-compile if requested by the target
e2fsprogs: remove obsolete sed based hack to fix pkgconfig file path

This hack can be safely removed because we already have an automatic
mechanism in moving the .pc files into the right place!
heimdal: Updated (1.3.3 -> 1.5.2)
heimdal: Updated (1.5.2 -> 1.5.3)
heimdal: changed to build minimal tools like asn1_compile at toolchain stage

asn1_compile is needed at stage 1 when cross-compiling.
heimdal: added toolchain patch so the tools get installed into bindir
heimdal: added bugfix patch for the roken-h-process.pl script
heimdal: changed to use custmain for toolchain build and also build slc
heimdal: fixed to only install krb5.conf when not at toolchain stage and to properly use $root
heimdal: add patch to use an pre-installed slc from the build host toolchain when cross-compiling
heimdal: add patch to use an available libcom_err provided by the system when cross-compiling