build serprog using fe_ *defined inside mkhelper*

sh macros ftw

Signed-off-by: Leah Rowe <leah@libreboot.org>

config/data/pico-serprog/mkhelper.cfg

@@ -4,4 +4,4 @@ sersrc="src/pico-serprog"
 serx="$sersrc/build/pico_serprog.uf2"
 picosdk="src/pico-sdk"
 serdir="$picosdk/src/boards/include/boards"
-premake="mkserprog pico"
+premake="$dry eval fe_ \"buildser pico\" basename -as .h \"\$serdir/\"*.h"

config/data/stm32-vserprog/mkhelper.cfg

@@ -3,4 +3,4 @@
 sersrc="src/stm32-vserprog"
 serx="$sersrc/stm32-vserprog.hex"
 serdir="$sersrc/boards"
-mkhelper="mkserprog stm32"
+mkhelper="$dry eval fe_ \"buildser stm32\" basename -as .h \"\$serdir/\"*.h"

include/rom.sh

@@ -7,12 +7,6 @@
 
 grubdata="config/data/grub"
 
-mkserprog()
-{
-	$dry fe_ "eval buildser \"$1\"" basename -as .h "$serdir/"*.h
-	[ "$XBMK_RELEASE" = "y" ] && $dry mkrom_tarball "bin/serprog_$1"; :
-}
-
 buildser()
 {
 	[ "$1" = "pico" ] && x_ cmake -DPICO_BOARD="$2" \