package/kmsxx: fix meson build directory for extra tools

Commit 4e95062f8 ("package/pkg-meson: use buildroot-build for build directory")
changed the build directory for meson packages to 'buildroot-build'.
Thus accessing the build directory for installing the extra utils needs
to be adopted to this directory. Otherwise the install will fail when
BR2_PACKAGE_KMSXX_INSTALL_TESTS is enabled.

Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/kmsxx/kmsxx.mk

@@ -30,7 +30,7 @@ KMSXX_EXTRA_UTILS += kmstouch
 endif
 define KMSXX_INSTALL_EXTRA_UTILS
 	$(foreach t,$(KMSXX_EXTRA_UTILS),\
-		$(INSTALL) -D -m 0755 $(@D)/build/utils/$(t) \
+		$(INSTALL) -D -m 0755 $(@D)/buildroot-build/utils/$(t) \
 			$(TARGET_DIR)/usr/bin/$(t)
 	)
 endef