mmc: mmc_test: add tests to measure large sequential I/O performance
mmc: mmc_test: add tests to measure large sequential I/O performance

Add two large sequential I/O performance tests:
        35. Large sequential read into scattered pages
        36. Large sequential write from scattered pages

The tests measure transfer times for 10MiB, 100MiB, 1000MiB.

Signed-off-by: Adrian Hunter <41bb5944f244750b7cf0394140496972a3f1bee3@nokia.com>
Signed-off-by: Chris Ball <6ca7faee6ca9a094b1ee341f11b840a5608a8746@laptop.org>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas