[AArch64] Add missing NEON scalar floating-point to integer convert ACLEs.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@196152 91177308-0d34-0410-b5e6-96231b3b80d8
[AArch64] Implemented vcopy_lane patterns using scalar DUP instruction.
Patch by Ana Pazos!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@196153 91177308-0d34-0410-b5e6-96231b3b80d8