powerpc/mpc85xx: Update erratum workaround for A006379

Update erratum workaround for A006379 to set register CPCHDBCR0
with value 0x001e0000, replacing the old value 0x003c0000.

Signed-off-by: York Sun <york.sun@nxp.com>
Reported-by: Dave Liu <dave.liu@nxp.com>
1 file changed