platform: msm_shared: Fix clock supply to emmc
platform: msm_shared: Fix clock supply to emmc

While enabling HS400 mode the SDC clock runs at 382 MHZ, we need
to set clock divider before enabling the clock otherwise card would
receive 382MHZ until the divider is set.

CRs-Fixed: 579248
Change-Id: I69b34cebb0c77722a64db3efff55dfdd2a26930d

idor/dk50-bootable_bootloader_lk,idor/dk50-bootable_bootloader_lk,mozilla-b2g/fairphone2_kernel_lk,t2m-foxfone/android_kernel_lk,idor/dk50-bootable_bootloader_lk,idor/dk50-bootable_bootloader_lk,lg-devs/g2-bootloader,t2m-foxfone/android_kernel_lk,mozilla-b2g/fairphone2_kernel_lk,idor/dk50-bootable_bootloader_lk,mozilla-b2g/fairphone2_kernel_lk,lg-devs/g2-bootloader,t2m-foxfone/android_kernel_lk,lg-devs/g2-bootloader,t2m-foxfone/android_kernel_lk,t2m-foxfone/android_kernel_lk,lg-devs/g2-bootloader,lg-devs/g2-bootloader,mozilla-b2g/fairphone2_kernel_lk,mozilla-b2g/fairphone2_kernel_lk