hdf5_msb

[svn-r12318] 
Purpose:
H5CC feature

Description:
Made H5_CFLAGS change to several more configuration files.

Solution:
Moved nonessential flags from CFLAGS to H5_CFLAGS for several more
platforms.  If my guesses about which flags were nonessential were
wrong, we'll have Daily Test errors.

Platforms tested:
mir, cray, copper, juniper (OS X)