outelf.c: char * -> const char *
outelf.c: char * -> const char *

Make the arguments to add_sectname() constant.  There are definitely
more things about this that ought to be cleaned up, including not
relying on magic offsets for the section numbers, but this is a
trivial cleanup that really needed to be done anyway.

Signed-off-by: H. Peter Anvin <8a453bad9912ffe59bc0f0b8abe03df9be19379e@linux.intel.com>

techkey/nasm,techkey/nasm,techkey/nasm,techkey/nasm,techkey/nasm