CI: Switch to using coreboot from our image

Instead of downloading coreboot binaries from a Google drive location,
use the ones we have built ourselves.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index e264678..aebcc89 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -236,10 +236,9 @@
               cp images/spi-nor.img \${UBOOT_TRAVIS_BUILD_DIR}/;
           fi
           if [[ "\${TEST_PY_BD}" == "coreboot" ]]; then
-              wget -O - "https://drive.google.com/uc?id=1uJ2VkUQ8czWFZmhJQ90Tp8V_zrJ6BrBH&export=download" |xz -dc >\${UBOOT_TRAVIS_BUILD_DIR}/coreboot.rom;
-              wget -O - "https://drive.google.com/uc?id=149Cz-5SZXHNKpi9xg6R_5XITWohu348y&export=download" >cbfstool;
-              chmod a+x cbfstool;
-              ./cbfstool \${UBOOT_TRAVIS_BUILD_DIR}/coreboot.rom add-flat-binary -f \${UBOOT_TRAVIS_BUILD_DIR}/u-boot.bin -n fallback/payload -c LZMA -l 0x1110000 -e 0x1110000;
+              cp /opt/coreboot/coreboot.rom \${UBOOT_TRAVIS_BUILD_DIR}/coreboot.rom;
+              /opt/coreboot/cbfstool \${UBOOT_TRAVIS_BUILD_DIR}/coreboot.rom remove -n fallback/payload;
+              /opt/coreboot/cbfstool \${UBOOT_TRAVIS_BUILD_DIR}/coreboot.rom add-flat-binary -f \${UBOOT_TRAVIS_BUILD_DIR}/u-boot.bin -n fallback/payload -c LZMA -l 0x1110000 -e 0x1110000;
           fi
           virtualenv -p /usr/bin/python3 /tmp/venv
           . /tmp/venv/bin/activate