[PATCH 122/144] llvm 13: handle deprecated CreateLoad

[PATCH 122/144] llvm 13: handle deprecated CreateLoad

As of llvm 13, CreateLoad prefers to have a type arguement as it's
first parameter, deprecating the old api.

For readablity, seperated out the CreateConstGEP* calls which have
a similar deprecation.

Signed-off-by: Tom Rix <trix@redhat.com>
Gbp-Pq: Name 0122-llvm-13-handle-deprecated-CreateLoad.patch