Get MPC8641HPCN flash images working.

Enable the CFI driver.
Remove bogus LAWBAR7 cruft.
Use correct TEXT_BASE, Fixup load script.
Enable SPD EEPROM during DDR setup.
Use generic

Get MPC8641HPCN flash images working.

Enable the CFI driver.
Remove bogus LAWBAR7 cruft.
Use correct TEXT_BASE, Fixup load script.
Enable SPD EEPROM during DDR setup.
Use generic RFC 1918 IP addresses by default.

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Cleanup whitespaces and style issues.
Removed //-style comments.
Use 80-column lines.
Remove trailing whitespace.
Remove dead code and debug cruft.

Initial support for MPC8641 HPCN board.