meta-zephyr-sdk: qemu: Use QEMU submodule

Use 'qemu' submodule as the source for building QEMU.

Signed-off-by: Stephanos Ioannidis <[email protected]>

Author: stephanosio

meta-zephyr-sdk/recipes-devtools/qemu/qemu-zephyr_git.bb

@@ -38,7 +38,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=441c28d2cf86e15a37fa47e15a72fbac \
                     file://COPYING.LIB;endline=24;md5=8c5efda6cf1e1b03dcfd0e6c0d271c7f"
 
 SRCREV = "37b8667bf62f568167b0ef28aa7e6a0878218ae7"
-SRC_URI = "gitsm://github.com/zephyrproject-rtos/qemu.git;protocol=https;nobranch=1 \
+SRC_URI = "git://../../../qemu;protocol=file;nobranch=1 \
            file://powerpc_rom.bin \
            file://run-ptest \
            file://qemu-guest-agent.init \