JIT: Suppress loop suspend checks.

Suppresses the suspend checks generated by the JIT compiler,
for small loops. This improves performance and code size of loops.

Change-Id: I5df70422668eb53c7789899823586daeee265633
Signed-off-by: Henrik Smiding <henrik.smiding@stericsson.com>
Signed-off-by: Patrik Ryd <patrik.ryd@stericsson.com>