Execute tests are disabled for RISC-V because is isn't able
to set an execution restriction. From RISC-V documentation:
"Instruction address-translation and protection are unaffected
by the setting of MPRV"
MPRV is used to apply memory protection restriction when CPU is
running in machine mode (kernel).
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
0a5b25916c