builddeb: Add automatic support for sh{3,4}{,eb} architectures

Different generations of the SH architecture are not very compatible,
so there are/were separate Debian ports for SH3 and SH4.

Move the fallback out of the "case" statement, so that it will also be
used in case we find some SH architecture version without a known
mapping.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

scripts/package/mkdebian

@@ -63,7 +63,15 @@ set_debarch() {
 		;;
 	openrisc)
 		debarch=or1k ;;
-	*)
+	sh)
+		if is_enabled CPU_SH3; then
+			debarch=sh3$(if_enabled_echo CPU_BIG_ENDIAN eb)
+		elif is_enabled CPU_SH4; then
+			debarch=sh4$(if_enabled_echo CPU_BIG_ENDIAN eb)
+		fi
+		;;
+	esac
+	if [ -z "$debarch" ]; then
 		debarch=$(dpkg-architecture -qDEB_HOST_ARCH)
 		echo "" >&2
 		echo "** ** **  WARNING  ** ** **" >&2
@@ -73,8 +81,7 @@ set_debarch() {
 		echo "Falling back to the current host architecture ($debarch)." >&2
 		echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
 		echo "" >&2
-		;;
-	esac
+	fi
 }
 
 # Some variables and settings used throughout the script