arm64/sve: Use the sve_flush macros in sve_load_from_fpsimd_state()

This makes the code a bit clearer and as a result we can also make the
indentation more normal, there is no change to the generated code.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210512151131.27877-3-broonie@kernel.orgSigned-off-by: Will Deacon <will@kernel.org>

arch/arm64/kernel/entry-fpsimd.S

@@ -65,8 +65,7 @@ SYM_FUNC_END(sve_set_vq)
 SYM_FUNC_START(sve_load_from_fpsimd_state)
 	sve_load_vq	x1, x2, x3
 	fpsimd_restore	x0, 8
- _for n, 0, 15, _sve_pfalse	\n
-		_sve_wrffr	0
+	sve_flush_p_ffr
 	ret
 SYM_FUNC_END(sve_load_from_fpsimd_state)