Add Seeed Arduino SSCMA (#4423)

Author: LynnL4

repositories.txt

@@ -5380,6 +5380,7 @@ https://github.com/Seeed-Studio/Seeed_Arduino_rpcWiFi
 https://github.com/Seeed-Studio/Seeed_Arduino_RTC
 https://github.com/Seeed-Studio/Seeed_Arduino_SFUD
 https://github.com/Seeed-Studio/Seeed_Arduino_Sketchbook
+https://github.com/Seeed-Studio/Seeed_Arduino_SSCMA
 https://github.com/Seeed-Studio/Seeed_LDC1612
 https://github.com/Seeed-Studio/Seeed_LTC2941
 https://github.com/Seeed-Studio/Seeed_MCP9600