msm: camera: common: Remove shell commands from android makefiles

Remove direct shell commands from Android makefiles to better make use
of android function definitions.
Also changes mmrm dependency to be based on whether or not the driver
is detected in the build before setting it as a dependency.

CRs-Fixed: 3298147
Change-Id: I0d5f2c9eb34ac635604c515638c9f00e29ae0b2a
Signed-off-by: Suraj Dongre <quic_sdongre@quicinc.com>

Kbuild

@@ -54,6 +54,10 @@ ifeq ($(CONFIG_ARCH_PARROT), y)
 include $(CAMERA_KERNEL_ROOT)/config/parrot.mk
 endif
 
+ifdef ($(KBUILD_EXTRA_CONFIGS))
+include $(KBUILD_EXTRA_CONFIGS)
+endif
+
 # List of all camera-kernel headers
 cam_include_dirs := $(shell dirname `find $(CAMERA_KERNEL_ROOT) -name '*.h'` | uniq)