msm: camera: common: Partial Camera Support

This change creates a sysfs entry(subparts_info) which
has info about number of IFEs, IFE-LITEs, SFEs & CUSTOM,
whose values are populated in their respective drivers.
Also, validates whether a particular IFE, SFE and CUSTOM
is supported or not. Based on this, probe of IFE, SFE and
CUSTOM drivers will happen accordingly.

CRs-Fixed: 3482745
Change-Id: Iff6e79a7793b14b1f368f215020617f10dbd4bb5
Signed-off-by: Karthik Dillibabu <quic_kard@quicinc.com>

dt-bindings/msm-camera.h

@@ -115,7 +115,10 @@
 #define CAM_CPAS_ISP_LITE_FUSE 6
 #define CAM_CPAS_CSIPHY_FUSE   7
 #define CAM_CPAS_IPE_VID_OUT_8BPP_LIMIT_ENABLE 8
-#define CAM_CPAS_FUSE_FEATURE_MAX 9
+#define CAM_CPAS_SFE_FUSE 9
+#define CAM_CPAS_CUSTOM_FUSE 10
+#define CAM_CPAS_CAM_FUSE 11
+#define CAM_CPAS_FUSE_FEATURE_MAX 12
 
 #define CCI_MASTER_0         0
 #define CCI_MASTER_1         1