[OE-core] PowerPC and TEXTREL in binaries

[Mark Hatle]

I've been chasing down a problem with prelinking and PowerPC.  Even though the 
prelinker runs, it ignores most of the binaries on the system as they fail a 
basic sanity check looking for TEXTREL.

It appears most of the executables on qemuppc machine are linked without pic, 
but I'm not sure if this indicates a problem with the compiler, configuration or 
something else.

If we can fix this, and get everything (within reason) building with pic, the 
prelinker will start to prelink PPC binaries and -should- improve load performance.

--Mark