MIPS32: Implement intrinsics from java.lang.Math:

- abs(double)           - abs(float)            - abs(int)
- abs(long)             - max(double, double)   - max(float, float)
- max(int, int)         - max(long, long)       - min(double, double)
- min(float, float)     - min(int, int)         - min(long, long)
- sqrt(double)

The math intrinsics:

- ceil(double)          - floor(double)         - rint(double)
- round(double)         - round(float)

aren't implemented because they require instructions which only exist
for MIPS64, or for MIPS32r6.

Change-Id: I943be3592b52a423fcb7ac40f46f38a5e2a58c50