[ARM] vfp: fix fuitod/fsitod instructions

These two instructions exceptionally take a single precision register
as their operand.  This means we can't use vfp_get_dm() to read the
register number - we need to use vfp_get_sm() instead.  Add a flag to
indicate this exception to the general rule.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/vfp/vfp.h b/arch/arm/vfp/vfp.h
index 54a2ad6..791d023 100644
--- a/arch/arm/vfp/vfp.h
+++ b/arch/arm/vfp/vfp.h
@@ -361,10 +361,12 @@
  *  OP_SCALAR - this operation always operates in scalar mode
  *  OP_SD - the instruction exceptionally writes to a single precision result.
  *  OP_DD - the instruction exceptionally writes to a double precision result.
+ *  OP_SM - the instruction exceptionally reads from a single precision operand.
  */
 #define OP_SCALAR	(1 << 0)
 #define OP_SD		(1 << 1)
 #define OP_DD		(1 << 1)
+#define OP_SM		(1 << 2)
 
 struct op {
 	u32 (* const fn)(int dd, int dn, int dm, u32 fpscr);