MLK-10976: mxc: sim: Using timer interrupt to implement precise timing.

The EMV4.3 has strict requirement about the reset sequence. The old code use the mdelay, udelay to
achievet, which is not precise enough. Replace it with the timer interrupt. The EMV4.3 requires
40000~45000 clock cycles duration when reset is low.

Signed-off-by: Luwei Zhou <b45643@freescale.com>
(cherry picked from a006fe283c8b97f0a711cb0829bfbdaaf4a5f31f)