crypto: x86/ghash - Use RIP-relative addressing

Prefer RIP-relative addressing where possible, which removes the need
for boot time relocation fixups.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Author: ardbiesheuvel

arch/x86/crypto/ghash-clmulni-intel_asm.S

@@ -93,7 +93,7 @@ SYM_FUNC_START(clmul_ghash_mul)
 	FRAME_BEGIN
 	movups (%rdi), DATA
 	movups (%rsi), SHASH
-	movaps .Lbswap_mask, BSWAP
+	movaps .Lbswap_mask(%rip), BSWAP
 	pshufb BSWAP, DATA
 	call __clmul_gf128mul_ble
 	pshufb BSWAP, DATA
@@ -110,7 +110,7 @@ SYM_FUNC_START(clmul_ghash_update)
 	FRAME_BEGIN
 	cmp $16, %rdx
 	jb .Lupdate_just_ret	# check length
-	movaps .Lbswap_mask, BSWAP
+	movaps .Lbswap_mask(%rip), BSWAP
 	movups (%rdi), DATA
 	movups (%rcx), SHASH
 	pshufb BSWAP, DATA