CMake: Fix SwiftCrypto/SwiftASN1 order

SwiftCrypto requires SwiftASN1. SwiftCrypto should be declaring the
dependency in its import files, but is not currently doing so resulting
in `find_package(SwiftCrypto)` failing because the `SwiftASN1` target
does not yet exist.
By placing `find_package(SwiftASN1)` before finding SwiftCrypto, we
ensure that the `SwiftASN1` target is populated ahead of time and
finding SwiftCrypto succeeds.

Author: etcwilde

CMakeLists.txt

@@ -24,8 +24,8 @@ find_package(LLBuild QUIET)
 find_package(ArgumentParser CONFIG REQUIRED)
 find_package(SwiftCollections QUIET)
 find_package(SwiftSyntax CONFIG REQUIRED)
-find_package(SwiftCrypto CONFIG REQUIRED)
 find_package(SwiftASN1 CONFIG REQUIRED)
+find_package(SwiftCrypto CONFIG REQUIRED)
 
 include(SwiftSupport)