xen/arm32: entry: Consolidate DEFINE_TRAP_ENTRY_* macros

xen/arm32: entry: Consolidate DEFINE_TRAP_ENTRY_* macros

The only difference between all the DEFINE_TRAP_ENTRY_* macros  are the
interrupts (Asynchronous Abort, IRQ, FIQ) unmasked.

Rather than duplicating the code, introduce __DEFINE_TRAP_ENTRY macro
that will take the list of interrupts to unmask.

This is part of XSA-254.

Signed-off-by: Julien Grall <julien.grall@linaro.org>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
(cherry picked from commit 3bd8fd751e50dd981b7055fb33cdc8aa29537673)