Tidy up the 8051 sdcc port (#376)

* Tidy up the 8051 sdcc port

* Replace tabs with spaces in SDCC Cygnal port.c file.

Co-authored-by: John Lin <shaojun.lin@delonghigroup.com>
Co-authored-by: Paul Bartell <pbartell@amazon.com>

Author: 3 people