sys: Enable NVMe drivers on all architectures

The NVMe drivers are portable and are already included statically in
GENERIC on other architectures such as aarch64 and riscv64.

Reviewed by:	imp
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D44690

share/man/man4/Makefile

@@ -404,9 +404,9 @@ MAN=	aac.4 \
 	${_if_ntb.4} \
 	null.4 \
 	numa.4 \
-	${_nvd.4} \
+	nvd.4 \
 	${_nvdimm.4} \
-	${_nvme.4} \
+	nvme.4 \
 	${_nvram.4} \
 	oce.4 \
 	ocs_fc.4\
@@ -836,8 +836,6 @@ _ntb_hw_amd.4=	ntb_hw_amd.4
 _ntb_hw_intel.4=	ntb_hw_intel.4
 _ntb_hw_plx.4=	ntb_hw_plx.4
 _ntb_transport.4=ntb_transport.4
-_nvd.4=		nvd.4
-_nvme.4=	nvme.4
 _nvram.4=	nvram.4
 _padlock.4=	padlock.4
 _pchtherm.4=	pchtherm.4
@@ -885,11 +883,6 @@ _vmm.4=		vmm.4
 .endif
 .endif
 
-.if ${MACHINE_CPUARCH} == "powerpc"
-_nvd.4= 	nvd.4
-_nvme.4=	nvme.4
-.endif
-
 .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" || \
 	 ${MACHINE_CPUARCH} == "aarch64"
 _gve.4=		gve.4

sys/modules/Makefile

@@ -290,9 +290,9 @@ SUBDIR=	\
 	nmdm \
 	nullfs \
 	${_ntb} \
-	${_nvd} \
+	nvd \
 	${_nvdimm} \
-	${_nvme} \
+	nvme \
 	${_nvram} \
 	oce \
 	${_ocs_fc} \
@@ -795,8 +795,6 @@ _iwmfw=		iwmfw
 _iwnfw=		iwnfw
 .endif
 _nfe=		nfe
-_nvd=		nvd
-_nvme=		nvme
 _nvram=		nvram
 .if ${MK_CRYPT} != "no" || defined(ALL_MODULES)
 _padlock=	padlock
@@ -880,8 +878,6 @@ _cfi=		cfi
 _cpufreq=	cpufreq
 _exca=		exca
 _ffec=		ffec
-_nvd=		nvd
-_nvme=		nvme
 .endif
 
 .if ${MACHINE_ARCH:Mpowerpc64*} != ""