boot: arm-trusted-firmware-microchipsw: depend on host Ruby

Microchip ATF depends on Ruby scripts to generate the FWU monitor HTML
and more, so make sure that host Ruby is available.

We also need to call the scripts directly via Ruby executable as shebang
wont work due to lack of Ruby in the Buildbot container.

Fixes: 5205c0c42607 ("microchipsw: lan969x: add Microchip EV23X71A")
Signed-off-by: Robert Marko <[email protected]>

package/boot/arm-trusted-firmware-microchipsw/Makefile

@@ -9,6 +9,7 @@ PKG_SOURCE_DATE:=2026-01-07
 PKG_SOURCE_VERSION:=7696c9aaaae7c677f4c373a61a1289cba7f824aa
 PKG_MIRROR_HASH:=331548d7c73896bd5e4438c0ec9c71bbe58d3bf9a29350496ad94c382e922b9c
 
+PKG_BUILD_DEPENDS:=ruby/host
 PKG_MAINTAINER:=Robert Marko <[email protected]>
 
 include $(INCLUDE_DIR)/kernel.mk

package/boot/arm-trusted-firmware-microchipsw/patches/0004-microchip-lan969x-do-not-rely-on-Ruby-shebang.patch

@@ -0,0 +1,29 @@
+From f78f934710394822a36bd74043ed93a812c1c690 Mon Sep 17 00:00:00 2001
+From: Robert Marko <[email protected]>
+Date: Mon, 12 Jan 2026 15:36:35 +0100
+Subject: [PATCH] microchip: lan969x: do not rely on Ruby shebang
+
+Host Ruby build in the staging dir must be used, so we cannot rely on the
+shebang as that will fail.
+
+So, call the script via Ruby executable instead.
+
+Signed-off-by: Robert Marko <[email protected]>
+---
+ plat/microchip/lan969x/common/common.mk | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/plat/microchip/lan969x/common/common.mk
++++ b/plat/microchip/lan969x/common/common.mk
+@@ -218,9 +218,9 @@ FWU_HTML := ${BUILD_PLAT}/fwu.html
+ FWU_JS   := ${BUILD_PLAT}/fwu_app.js
+ 
+ ${FWU_JS}: ${BUILD_PLAT}/${FWU_FIP_NAME}
+-	./plat/microchip/scripts/mkjs.rb -p ${PLAT} -o ${FWU_JS} $<
++	$(Q)ruby ./plat/microchip/scripts/mkjs.rb -p ${PLAT} -o ${FWU_JS} $<
+ 
+ ${FWU_HTML}: ${FWU_JS}
+-	./plat/microchip/scripts/html_inline.rb -i ${BUILD_PLAT} ./scripts/fwu/serial.html > ${FWU_HTML}
++	$(Q)ruby ./plat/microchip/scripts/html_inline.rb -i ${BUILD_PLAT} ./scripts/fwu/serial.html > ${FWU_HTML}
+ 
+ all: ${FWU_HTML}