RHEL 8 openssl-devel package dependency missing

I have downloaded the openssl-devel rpm from https://access.redhat.com/downloads/content/openssl-devel/1.1.1g-12.el8_3/x86_64/fd431d51/package along with its source files for inspection purposes. According to a patch file within the sources, it shows I should have access to a function called FIPS_selftest_rsa() which has it's declaration listed in a file called openssl-1.1.1e/include/crypto/fips.h. I am, however, unable to find this /crypto/ directory after I have installed the openssl-devel rpm.

Where do I find this /crypto/ directory which is supposed to be patched into the downloaded rpm listed above?