package/pkg-meson: add support for new cpu families

Add mappings for new cpu families based on the reference table:
https://mesonbuild.com/Reference-tables.html#cpu-families

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(cherry picked from commit 0a91f37c482914d70336454cb4ab4fa8ffda30a5)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/pkg-meson.mk

@@ -36,6 +36,8 @@ else ifeq ($(BR2_arm)$(BR2_armeb),y)
 PKG_MESON_TARGET_CPU_FAMILY = arm
 else ifeq ($(BR2_aarch64)$(BR2_aarch64_be),y)
 PKG_MESON_TARGET_CPU_FAMILY = aarch64
+else ifeq ($(BR2_csky),y)
+PKG_MESON_TARGET_CPU_FAMILY = csky
 else ifeq ($(BR2_i386),y)
 PKG_MESON_TARGET_CPU_FAMILY = x86
 else ifeq ($(BR2_m68k),y)
@@ -50,8 +52,12 @@ else ifeq ($(BR2_powerpc),y)
 PKG_MESON_TARGET_CPU_FAMILY = ppc
 else ifeq ($(BR2_powerpc64)$(BR2_powerpc64le),y)
 PKG_MESON_TARGET_CPU_FAMILY = ppc64
-else ifeq ($(BR2_riscv),y)
+else ifeq ($(BR2_riscv)$(BR2_RISCV_32),yy)
+PKG_MESON_TARGET_CPU_FAMILY = riscv32
+else ifeq ($(BR2_riscv)$(BR2_RISCV_64),yy)
 PKG_MESON_TARGET_CPU_FAMILY = riscv64
+else ifeq ($(BR2_s390x),y)
+PKG_MESON_TARGET_CPU_FAMILY = s390x
 else ifeq ($(BR2_sh4)$(BR2_sh4eb)$(BR2_sh4a)$(BR2_sh4aeb),y)
 PKG_MESON_TARGET_CPU_FAMILY = sh4
 else ifeq ($(BR2_sparc),y)