sha256-armv4.pl: fix typo.

(Imported from upstream's 52cab5635603c1a7a00bc6f92401c84ec8920298.)

Change-Id: I97b89c03e1a05063100f94b87e06afb2028371ff
Reviewed-on: https://boringssl-review.googlesource.com/3021
Reviewed-by: Adam Langley <agl@google.com>
diff --git a/crypto/sha/asm/sha256-armv4.pl b/crypto/sha/asm/sha256-armv4.pl
index b0ae936..f14c9c3 100644
--- a/crypto/sha/asm/sha256-armv4.pl
+++ b/crypto/sha/asm/sha256-armv4.pl
@@ -619,7 +619,7 @@
 $code.=<<___;
 .asciz  "SHA256 block transform for ARMv4/NEON/ARMv8, CRYPTOGAMS by <appro\@openssl.org>"
 .align	2
-#if __ARM_MARCH_ARCH__>=7
+#if __ARM_MAX_ARCH__>=7
 .comm   OPENSSL_armcap_P,4,4
 #endif
 ___