Replace BNX2X_TLV_APPEND() with the clearer and safer bnx2x_add_tlv().
bnx2x_add_tlv() was previously prototyped at some point but can be static.
Fixes: 540a211084a7 ("bnx2x: driver core")
Signed-off-by: Chas Williams <3chas3@gmail.com>
Acked-by: Harish Patil <harish.patil@qlogic.com>