Use BoringSSL instead of mincrypt to speed up package verification.
This changes the verification code in bootable/recovery to use
BoringSSL instead of mincrypt.
Cherry-pick of 452df6d99c81c4eeee3d2c7b2171901e8b7bc54a, with
merge conflict resolution, extra logging in verifier.cpp, and
an increase in the hash chunk size from 4KiB to 1MiB.
Bug: http://b/28135231
Change-Id: I1ed7efd52223dd6f6a4629cad187cbc383d5aa84
diff --git a/tests/testdata/test_key_ec.txt b/tests/testdata/test_key_ec.txt
new file mode 100644
index 0000000..72b4395
--- /dev/null
+++ b/tests/testdata/test_key_ec.txt
@@ -0,0 +1 @@
+v5 {32,{36,250,86,214,202,22,20,147,198,120,2,28,76,190,78,23,106,35,24,96,86,22,186,69,132,93,192,232,0,213,14,103},{222,154,23,13,125,130,22,76,146,185,140,159,138,255,105,143,32,16,27,72,175,145,141,121,233,184,77,24,217,141,132,181}}