microwatt/tests/modes
Paul Mackerras c9e838b656 Remove support for lq, stq, lqarx and stqcx.
They are optional in SFFS (scalar fixed-point and floating-point
subset), are not needed for running Linux, and add complexity, so
remove them.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
..
Makefile tests: Add tests for 32-bit and big-endian modes
head.S Remove support for lq, stq, lqarx and stqcx.
modes.c Remove support for lq, stq, lqarx and stqcx.
powerpc.lds tests: Add tests for 32-bit and big-endian modes