cxgb3: Remove incorrect __devinit annotations

When PCI error recovery was added to cxgb3, a function t3_io_slot_reset()
was added.  This function can call back into t3_prep_adapter() at any
time, so t3_prep_adapter() can no longer be marked __devinit.
This patch removes the __devinit annotation from t3_prep_adapter() and
all the functions that it calls, which fixes

    WARNING: drivers/net/cxgb3/built-in.o(.text+0x2427): Section mismatch in reference from the function t3_io_slot_reset() to the function .devinit.text:t3_prep_adapter()

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>