hexagon: parenthesize registers in asm predicates

hexagon: parenthesize registers in asm predicates

Hexagon requires that register predicates in assembly be parenthesized.

Link: https://github.com/ClangBuiltLinux/linux/issues/754
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Nick Desaulniers <[email protected]>
Suggested-by: Sid Manning <[email protected]>
Acked-by: Brian Cain <[email protected]>
Cc: Lee Jones <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Tuowen Zhao <[email protected]>
Cc: Mika Westerberg <[email protected]>
Cc: Luis Chamberlain <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Alexios Zavras <[email protected]>
Cc: Allison Randal <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Richard Fontana <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>