Do not offer the hwe kernel for RISC-V server-live images

debian/changelog

@@ -1,3 +1,9 @@
+livecd-rootfs (2.765.17) UNRELEASED; urgency=medium
+
+  * Do not offer the hwe kernel for RISC-V server-live images (LP: #2007863).
+
+ -- Łukasz 'sil2100' Zemczak <lukasz.zemczak@ubuntu.com>  Mon, 20 Feb 2023 17:18:37 +0100
+
 livecd-rootfs (2.765.16) jammy; urgency=medium
 
   * Properly handle the lowlatency hwe kernel flavour.

live-build/auto/config

@@ -853,7 +853,12 @@ case $PROJECT in
 				# written generically to support both even though a lot of the
 				# time only one kernel is offered.
 
-				variants='ga hwe'
+				if [ $ARCH = riscv64 ]; then
+					# However, for RISC-V we only offer one kernel
+					variants='ga'
+				else
+					variants='ga hwe'
+				fi
 
 				for variant in $variants; do
 					if [ "$variant" = "ga" ]; then