shim 15.3 release candidate 2
Yay, another release candidate. Here's the shortlog since rc1:
Javier Martinez Canillas (1):
shim: Fix a NULL pointer dereference caused by start not being set
Peter Jones (2):
Nerf an unnecessary string test on arm.
arm and aarch64: fix some PE headers.
Steve McIntyre (2):
Stop using EFI_PATH, and error out if people try to use it
Fix up build of test code using gcc 8