style: remove useless trailing semicolon and line continuations

found using checkpatch.pl[1]

[1]: https://review.coreboot.org/plugins/gitiles/coreboot/+/refs/heads/master/util/lint/checkpatch.pl

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: I7957c9694300fefb85d11f7819c43af95271f14c
diff --git a/include/arch/aarch64/arch_helpers.h b/include/arch/aarch64/arch_helpers.h
index 5d99778..3350c8f 100644
--- a/include/arch/aarch64/arch_helpers.h
+++ b/include/arch/aarch64/arch_helpers.h
@@ -692,7 +692,7 @@
 	isb();	\
 }
 #else
-#define AT(_at_inst, _va)	_at_inst(_va);
+#define AT(_at_inst, _va)	_at_inst(_va)
 #endif
 
 #endif /* ARCH_HELPERS_H */