Fix building with non bazel commits of boringssl #708

Job	Run time
rustfmt	5s
clippy	52s
Cross build from macOS to Linux (FIPS) (x86_64-unknown-linux-gnu)	5m 36s
Test features	29s
Test FIPS integration	2m 37s
Test (stable)	1m 56s
Test (arm-android)	1m 49s
Cross build from macOS to Linux (x86_64-unknown-linux-gnu)	3m 38s
Test (arm64-android)	2m 3s
Test (i686-android)	1m 57s
Test (x86_64-android)	1m 48s
Test (aarch64-ios)	8m 6s
Test (aarch64-ios-sim)	6m 59s
Test (x86_64-ios)	4m 37s
Test (i686-linux)	2m 19s
Test (arm-linux)	2m 9s
Test (aarch64-linux)	2m 30s
Test (arm64-macos)	4m 40s
Test (x86_64-macos)	5m 36s
Test (x86_64-mingw)	7m 42s
Test (i686-msvc)	5m 18s
Test (x86_64-msvc)	7m 10s
	1h 19m 56s

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