[ecdsa-sca] Enable ECDSA-256 secret shares for capture

- Enables sending of all secret shares (k0, k1, d0, d1) from the Python
code (capture.py).

- Enables the trace collection without needing to reflash the firmware
  at every iteration.

Signed-off-by: Bilgiday Yuce <bilgiday@opentitan.org>

.gitattributes

@@ -2,9 +2,12 @@ cw/objs/lowrisc_systems_chip_englishbreakfast_cw305_0.1.bit filter=lfs diff=lfs
 cw/objs/aes_serial_fpga_nexysvideo.bin filter=lfs diff=lfs merge=lfs -text
 cw/objs/lowrisc_systems_chip_earlgrey_cw310_0.1.bit filter=lfs diff=lfs merge=lfs -text
 cw/objs/lowrisc_systems_chip_earlgrey_cw310_0.1_kmac_dom.bit filter=lfs diff=lfs merge=lfs -text
+cw/objs/lowrisc_systems_chip_earlgrey_cw310_0.1_ecdsa.bit filter=lfs diff=lfs merge=lfs -text
 cw/objs/kmac_serial_fpga_cw310.bin filter=lfs diff=lfs merge=lfs -text
 cw/objs/sha3_serial_fpga_cw310.bin filter=lfs diff=lfs merge=lfs -text
 cw/objs/aes_serial_fpga_cw310.bin filter=lfs diff=lfs merge=lfs -text
+cw/objs/ecc_serial_fpga_cw310.bin filter=lfs diff=lfs merge=lfs -text
+cw/objs/ecc384_serial_fpga_cw310.bin filter=lfs diff=lfs merge=lfs -text
 doc/img/cw310_cwhusky.jpg filter=lfs diff=lfs merge=lfs -text
 doc/img/sample_traces_aes.png filter=lfs diff=lfs merge=lfs -text
 doc/img/sample_traces_kmac.png filter=lfs diff=lfs merge=lfs -text