Dockerfile: update spdk to 7a6125f

Longhorn 7672

Signed-off-by: Derek Su <[email protected]>

Author: derekbit

Dockerfile.dapper

@@ -33,7 +33,7 @@ RUN curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/i
 
 # Build SPDK
 ENV SPDK_DIR /usr/src/spdk
-ENV SPDK_COMMIT_ID 7a25c3c5a102dfb2d8715f9bf090691176de5ef7
+ENV SPDK_COMMIT_ID 7a6125fda83e0b8ad0ca22d99f6f3b0e96302691
 RUN git clone https://github.com/longhorn/spdk.git ${SPDK_DIR} --recursive && \
     cd ${SPDK_DIR} && \
     git checkout ${SPDK_COMMIT_ID} && \