scpi-dmm: add support for OWON XDM1241

OWON XDM1241 is basically XDM1041, but with a lithium battery pack and USB power input instead of AC mains PSU.

It uses the same PCB and, probably, the same fw, but returns different model string.

Author: evgeny-boger

src/hardware/scpi-dmm/api.c

@@ -313,6 +313,14 @@ SR_PRIV const struct scpi_dmm_model models[] = {
 		0, 0, 0, 1e9, TRUE,
 		scpi_dmm_owon_get_range_text, scpi_dmm_owon_set_range_from_text, scpi_dmm_owon_get_range_text_list,
 	},
+	{
+		"OWON", "XDM1241",
+		1, 5, cmdset_owon, ARRAY_AND_SIZE(mqopts_owon_xdm1041),
+		scpi_dmm_get_meas_gwinstek,
+		ARRAY_AND_SIZE(devopts_generic_range),
+		0, 0, 0, 1e9, TRUE,
+		scpi_dmm_owon_get_range_text, scpi_dmm_owon_set_range_from_text, scpi_dmm_owon_get_range_text_list,
+	},
 	{
 		"OWON", "XDM2041",
 		1, 5, cmdset_owon, ARRAY_AND_SIZE(mqopts_owon_xdm2041),