.github: Enable testing of sh-unknown-elf

This uses a custom toolchain but the stock debian qemu.

Signed-off-by: Keith Packard <[email protected]>

Author: keith-packard

.github/do-linux

@@ -14,6 +14,7 @@ HERE=`dirname "$0"`
 "$HERE"/do-test i386 "$@"
 "$HERE"/do-test m68k-unknown-elf "$@"
 "$HERE"/do-test msp430-unknown-elf "$@"
+"$HERE"/do-test sh-unknown-elf "$@"
 "$HERE"/do-build sparc64 "$@"
 "$HERE"/do-test x86_64 "$@"
 "$HERE"/do-test x86 "$@"

.github/linux-files.txt

@@ -2,4 +2,5 @@ https://github.com/ZakKemble/avr-gcc-build/releases/download/v12.1.0-1/avr-gcc-1
 https://maps.altusmetrum.org/qemu-m68k.tar.xz
 https://maps.altusmetrum.org/m68k-unknown-elf.tar.xz
 https://maps.altusmetrum.org/msp430-unknown-elf.tar.xz
+https://maps.altusmetrum.org/sh-unknown-elf-1.tar.xz
 https://maps.altusmetrum.org/qemu-arm.tar.xz