Hexagon: Add signal functions

Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Linas Vepstas <linas@codeaurora.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --cc arch/hexagon/include/asm/sigcontext.h
Simple merge

diff --cc arch/hexagon/include/asm/signal.h
Simple merge

diff --cc arch/hexagon/include/asm/vdso.h
Simple merge

diff --cc arch/hexagon/kernel/signal.c
Simple merge

diff --cc arch/hexagon/kernel/trampoline.S
Simple merge

diff --cc arch/hexagon/kernel/vdso.c
Simple merge