[servod] Add ChromeOS flashrom to servod container

BUG=b:208258041

Change-Id: Icb4cefa8ad083119305ec94b4d3b3312c2028041
diff --git a/src/dockerfiles/servod/Dockerfile b/src/dockerfiles/servod/Dockerfile
index f411030..b667cd9 100644
--- a/src/dockerfiles/servod/Dockerfile
+++ b/src/dockerfiles/servod/Dockerfile
@@ -23,12 +23,12 @@
 RUN apt-get update \
     && apt-get install -y \
         dfu-util \
-        flashrom \
         ftdi-eeprom \
         iptables \
         gcc \
         kmod \
         libboost-all-dev \
+        libpci-dev \
         libssl-dev \
         libusb-1.0-0-dev \
         lsof \
@@ -126,6 +126,11 @@
 COPY --from=gcr.io/satlab-images/servod/overlays/cbfstool:4.14 /coreboot-4.14/util/cbfstool/cbfstool /usr/local/bin/
 RUN chmod 755 /usr/local/bin/cbfstool
 
+WORKDIR /
+RUN git clone https://chromium.googlesource.com/chromiumos/third_party/flashrom
+WORKDIR /flashrom
+RUN make && make install
+
 # Install vboot
 WORKDIR /
 RUN git clone https://chromium.googlesource.com/chromiumos/platform/vboot_reference