Changes to only configure the LFSR on devices that don't have the prng hardware already setup mistakenly removed the LFSR configuration. Instead, the change is ORing in 1s into the top 16 bits of the register (they're marked as reserved). Restore the original code by masking off the lower 16 bits of the register and filling them with values from the PRNG_LFSR_CFG_CLOCKS define. Change-Id: Idd0df7b49175c211eec5ea778733ae81f5bc8188 Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>