hwrng: hisi - remove HiSilicon TRNG driver

Driver of HiSilicon true random number generator(TRNG)
is removed from 'drivers/char/hw_random'.

Both 'Kunpeng 920' and 'Kunpeng 930' chips have TRNG,
however, PRNG is only supported by 'Kunpeng 930'.
So, this driver is moved to 'drivers/crypto/hisilicon/trng/'
in the next to enable the two's TRNG better.

Signed-off-by: Weili Qian <qianweili@huawei.com>
Reviewed-by: Zaibo Xu <xuzaibo@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/char/hw_random/Kconfig

@@ -348,19 +348,6 @@ config HW_RANDOM_HISI
 
 	  If unsure, say Y.
 
-config HW_RANDOM_HISI_V2
-	tristate "HiSilicon True Random Number Generator V2 support"
-	depends on HW_RANDOM && ARM64 && ACPI
-	default HW_RANDOM
-	help
-	  This driver provides kernel-side support for the True Random Number
-	  Generator V2 hardware found on HiSilicon Hi1620 SoC.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called hisi-trng-v2.
-
-	  If unsure, say Y.
-
 config HW_RANDOM_ST
 	tristate "ST Microelectronics HW Random Number Generator support"
 	depends on HW_RANDOM && ARCH_STI

drivers/char/hw_random/Makefile

@@ -30,7 +30,6 @@ obj-$(CONFIG_HW_RANDOM_NOMADIK) += nomadik-rng.o
 obj-$(CONFIG_HW_RANDOM_PSERIES) += pseries-rng.o
 obj-$(CONFIG_HW_RANDOM_POWERNV) += powernv-rng.o
 obj-$(CONFIG_HW_RANDOM_HISI)	+= hisi-rng.o
-obj-$(CONFIG_HW_RANDOM_HISI_V2) += hisi-trng-v2.o
 obj-$(CONFIG_HW_RANDOM_BCM2835) += bcm2835-rng.o
 obj-$(CONFIG_HW_RANDOM_IPROC_RNG200) += iproc-rng200.o
 obj-$(CONFIG_HW_RANDOM_ST) += st-rng.o