There is a bug in the OpenSSL script which generates this file, I've
reported it upstream: https://github.com/openssl/openssl/issues/21647

Specifically, when generating the output, bsaes-armv7.pl strips some
labels that are used when the output asm is compiled with KERNEL
defined, resulting in a build error. I would like to start compiling
bsaes-armv7.S into the ossl kernel module, so this change manually adds
the missing labels.

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