im_color_ramp: fix the int point branch

Its wrangle read uniquevals from a misspelled inputattrb parm, so the
array was empty and fit collapsed to a zero-width range, and it looked
the value up with prim() from a point wrangle. Every point came out
the same colour. Spell the parm correctly and read the point value.

Co-Authored-By: Claude Fable 5.1 <[email protected]>

 otls/sop_lsgalante.im_color_ramp.1.1.hdalc | Bin 16966 -> 16969 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)

diff --git a/otls/sop_lsgalante.im_color_ramp.1.1.hdalc b/otls/sop_lsgalante.im_color_ramp.1.1.hdalc
index 0af239c..bdfc1ad 100644
Binary files a/otls/sop_lsgalante.im_color_ramp.1.1.hdalc and b/otls/sop_lsgalante.im_color_ramp.1.1.hdalc differ