[SPARC64]: Partially revert "Constify function pointer tables."

[SPARC64]: Partially revert "Constify function pointer tables."

This partially reverts dad56ac19eab167d0c925732f5d70d2644e4df35
(Constify function pointer tables.)

The solaris/socksys.c transformation wasn't valid:

arch/sparc64/solaris/socksys.c:192: error: assignment of read-only variable ‘socksys_file_ops’
arch/sparc64/solaris/socksys.c:195: error: assignment of read-only variable ‘socksys_file_ops’
arch/sparc64/solaris/socksys.c:196: error: assignment of read-only variable ‘socksys_file_ops’

Signed-off-by: David S. Miller <davem@davemloft.net>