x86/hevc_deblock: merge movs with other instructions

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
x86/hevc_deblock: fix usage of ABS1

The second argument is a temp register for non-SSSE3 cases

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
x86/hevc_deblock: fix label names

Also remove some unnecessary jmps

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
x86/hevc_deblock: use movhps instead of shuffling values

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>