fcup-smsend[mult]: fix buglet in K&R C NULL pointer passing The only 100% safe way to pass a NULL pointer as a function argument in K&R C is to cast 0 to a pointer type; failing to do so may cause mysterious bugs (invalid stack frames or garbage in argument registers) on 64-bit machines. This issue has already been fixed in most of FC host tools, but I just found some missed spots: passing of NULL UDH to PDU encoding functions in fcup-smsend[mult] in the case of single (not concatenated) SMS.

# This loadtool init script provides memory interface register setup
# for targets which fit the following criteria:
#
# Classic chip select arrangement: nCS0 for flash and nCS1 for XRAM
# 4 wait states are to be used (register setting 00A4)
# 8 MiB flash chip may be present, thus ADD22 needs to be enabled

w16 fffffb00 00A4
w16 fffffb02 00A4
w16 fffef006 0008