put all src downloads under src/

build/release/src was partly re-written to accomodate this

memtest86plus was patched to have a central Makefile, and
lbmk modified to use that, rather than mess with build32
and build64. the central Makefile just builds both targets
or cleans both targets

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

config/git/serprog

@@ -1,27 +1,27 @@
-{rpi-pico-sdk}{
-	rev: 6a7db34ff63345a7badec79ebea3aaef1712f374
-	loc: util-fw/rp2040/pico-sdk
-	url: https://github.com/raspberrypi/pico-sdk
-}
-
-{rpi-pico-tinyusb}{
-	rev: 86c416d4c0fb38432460b3e11b08b9de76941bf5
-	loc: util-fw/rp2040/pico-sdk/lib/tinyusb
-	url: https://github.com/hathach/tinyusb.git
-}
-
 {rpi-pico-serprog}{
 	rev: c8c16e9c11fe9e5b7230ff358f79de3f1951e1d9
-	loc: util-fw/rp2040/pico-serprog
+	loc: pico-serprog
 	url: https://codeberg.org/libreboot/pico-serprog
 	bkup_url: https://notabug.org/libreboot/pico-serprog
 	depend: rpi-pico-sdk
 	depend: rpi-pico-tinyusb
 }
 
+{rpi-pico-sdk}{
+	rev: 6a7db34ff63345a7badec79ebea3aaef1712f374
+	loc: pico-sdk
+	url: https://github.com/raspberrypi/pico-sdk
+}
+
+{rpi-pico-tinyusb}{
+	rev: 86c416d4c0fb38432460b3e11b08b9de76941bf5
+	loc: pico-sdk/lib/tinyusb
+	url: https://github.com/hathach/tinyusb.git
+}
+
 {stm32-vserprog}{
 	rev: 8fcf0a4d41800631b571fa7bbd1d8b251f0a2111
-	loc: util-fw/stm32-vserprog
+	loc: stm32-vserprog
 	url: https://codeberg.org/libreboot/stm32-vserprog
 	bkup_url: https://notabug.org/libreboot/stm32-vserprog
 	depend: libopencm3
@@ -29,6 +29,6 @@
 
 {libopencm3}{
 	rev: 458250dc6147dc807eec9e4d5a6caf38a699ecb1
-	loc: util-fw/stm32-vserprog/libopencm3
+	loc: stm32-vserprog/libopencm3
 	url: https://github.com/libopencm3/libopencm3
 }