Simplify Windows-on-Arm macros
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/library/alignment.h b/library/alignment.h
index ff811e3..d8c4fb3 100644
--- a/library/alignment.h
+++ b/library/alignment.h
@@ -36,7 +36,7 @@
*/
#if defined(__ARM_FEATURE_UNALIGNED) \
|| defined(MBEDTLS_ARCH_IS_X86) || defined(MBEDTLS_ARCH_IS_X64) \
- || defined(_M_ARM64) || defined(_M_ARM64EC)
+ || defined(MBEDTLS_PLATFORM_IS_WINDOWS_ON_ARM64)
/*
* __ARM_FEATURE_UNALIGNED is defined where appropriate by armcc, gcc 7, clang 9
* (and later versions) for Arm v7 and later; all x86 platforms should have