rtcpu: remove unused drivers for clk, drive and reset groups

Remove unused module drivers from build as the drivers
are integrated with client driver as single module.
Drivers which are getting removed are:
         clk-group
         device-group
         reset-group

These drivers was restored due to packaging error in
release branch which is fixed now.

Change-Id: I094e62ae2a83eb7816c98bf113c5a74f2636a41f
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2929127
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>

drivers/platform/tegra/rtcpu/Makefile

@@ -12,10 +12,7 @@ obj-m += ivc-bus.o
 obj-m += camchar.o
 obj-m += camera-diagnostics.o
 obj-m += rtcpu-debug.o
-obj-m += clk-group.o
 obj-m += hsp-mailbox-client.o
-obj-m += reset-group.o
-obj-m += device-group.o
 
 tegra-camera-rtcpu-objs := clk-group.o \
 			   device-group.o \