This change adds CONFIG_HW_RANDOM to the HIFN 795x crypro accelerator which has 
a hardware random number generator.

With out this one will get the following errors

hifn_795x: Unknown symbol hwrng_unregister
hifn_795x: Unknown symbol hwrng_register

which will cause the driver not to load.
This was discovered by OpenWrt member jal2

Signed-off-by: Robert Alan Byer <b...@mail.ourservers.net>

Index: crypto.mk
===================================================================
--- crypto.mk   (revision 19871)
+++ crypto.mk   (working copy)
@@ -97,6 +97,7 @@
   TITLE:=HIFN 795x crypto accelerator
   KCONFIG:= \
        CONFIG_CRYPTO_HW=y \
+       CONFIG_HW_RANDOM=y \
        CONFIG_CRYPTO_DEV_HIFN_795X \
        CONFIG_CRYPTO_DEV_HIFN_795X_RNG=y
   FILES:=$(LINUX_DIR)/drivers/crypto/hifn_795x.$(LINUX_KMOD_SUFFIX)
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