ARM: 9133/1: mm: proc-macros: ensure *_tlb_fns are 4B aligned

A kernel built with CONFIG_THUMB2_KERNEL=y and using clang as the
assembler could generate non-naturally-aligned v7wbi_tlb_fns which
results in a boot failure. The original commit adding the macro missed
the .align directive on this data.

Link: ClangBuiltLinux#1447
Link: https://lore.kernel.org/all/[email protected]/
Debugged-by: Ard Biesheuvel <[email protected]>
Debugged-by: Nathan Chancellor <[email protected]>
Debugged-by: Richard Henderson <[email protected]>

Fixes: 66a625a ("ARM: mm: proc-macros: Add generic proc/cache/tlb struct definition macros")
Suggested-by: Ard Biesheuvel <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Nick Desaulniers <[email protected]>
Tested-by: Nathan Chancellor <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>

Author: nickdesaulniers

arch/arm/mm/proc-macros.S

@@ -340,6 +340,7 @@ ENTRY(\name\()_cache_fns)
 
 .macro define_tlb_functions name:req, flags_up:req, flags_smp
 	.type	\name\()_tlb_fns, #object
+	.align 2
 ENTRY(\name\()_tlb_fns)
 	.long	\name\()_flush_user_tlb_range
 	.long	\name\()_flush_kern_tlb_range