Fix: FreeBSD Arm64 does not build currently

The define LD_VERSION isn't defined on FreeBSD Arm64 when OpenZFS is
build with the default compiler: clang.
I used only gcc for testing - my fault.

Fast fix as suggested by @mmatuska

Reviewed-by: Tony Hutter <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Signed-off-by: Martin Matuska <[email protected]>
Signed-off-by: Tino Reichardt <[email protected]>
Closes #16103

Author: mcmilk

module/icp/asm-aarch64/blake3/b3_aarch64_sse2.S

@@ -34,7 +34,7 @@
 #if defined(__aarch64__)
 
 /* make gcc <= 9 happy */
-#if LD_VERSION >= 233010000
+#if !defined(LD_VERSION) || LD_VERSION >= 233010000
 #define CFI_NEGATE_RA_STATE .cfi_negate_ra_state
 #else
 #define CFI_NEGATE_RA_STATE

module/icp/asm-aarch64/blake3/b3_aarch64_sse41.S

@@ -34,7 +34,7 @@
 #if defined(__aarch64__)
 
 /* make gcc <= 9 happy */
-#if LD_VERSION >= 233010000
+#if !defined(LD_VERSION) || LD_VERSION >= 233010000
 #define CFI_NEGATE_RA_STATE .cfi_negate_ra_state
 #else
 #define CFI_NEGATE_RA_STATE