msm: camera: custom: Enable driver compilation & minor fixes

Enable custom driver compilation on lahaina and few minor fixes
in custom HW driver.

CRs-Fixed: 2716300
Change-Id: I6f9ead5d2d67d91c14daf200ba12e95a1afec61d
Signed-off-by: Karthik Anantha Ram <kartanan@codeaurora.org>

config/lahainacamera.conf

@@ -14,4 +14,5 @@ export CONFIG_SPECTRA_ISP=y
 export CONFIG_SPECTRA_SENSOR=y
 export CONFIG_SPECTRA_ICP=y
 export CONFIG_SPECTRA_JPEG=y
+export CONFIG_SPECTRA_CUSTOM=y
 endif

config/lahainacameraconf.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (c) 2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.
  */
 
 
@@ -9,3 +9,4 @@
 #define CONFIG_SPECTRA_SENSOR 1
 #define CONFIG_SPECTRA_ICP    1
 #define CONFIG_SPECTRA_JPEG   1
+#define CONFIG_SPECTRA_CUSTOM 1