v5: support even set multiples in JBSMATCH

shrinks code size by 4

After:
   text	   data	    bss	    dec	    hex	filename
   4296	      0	      0	   4296	   10c8	apf_interpreter.arm.o
   text	   data	    bss	    dec	    hex	filename
   5581	      0	      0	   5581	   15cd	apf_interpreter.x86.o

Test: TreeHugger, manual
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I85fef1a55cb0c00776c8563cb78110cf7c4023cb
2 files changed