openssl: fix engine defines to match upstream

[gordon]

Summary

Two engine Makefiles define different macros from upstream's
engines/build.info:

• padlock: engines/e_padlock.c builds the engine only when PADLOCK_ASM is defined. Upstream defines it on x86 and x86_64, but our Makefile never did, so padlock.so has been a stub whose bind_engine() returns 0 and the e_padlock-x86*.S code it links was never called. Define PADLOCK_ASM on amd64 and i386, where that asm is built.

• loader_attic: upstream defines OPENSSL_NO_PROVIDER_CODE; the Makefile had OPENSSL_NO_PROVIDER_CORE. No source tests either name, so the build does not change; this only follows upstream.

Test Plan

Found by comparing per-file compile flags against an upstream 3.5.9 build. Checked via tinderbox on amd64 and validated the module loaded. It wasn't a VIA chip, so I couldn't validate it was functional, but previously, the library load would fail entirely. Didn't run the i386 build but confirmed it contains code from the ASM file.