scripts: snapshot of kernel build utility scripts

This is a snapshot of build scripts taken as of msm-4.9 commit
<ed98af78b1815a8> (" Merge "drm/msm/dsi-staging: toggle phy reset
disable during idle pc") into msm-next.

Update build-all.py to compile sdm855 target.

Change-Id: If63adb69134f63db9df1160a3e7035a24b001d3d
Signed-off-by: Channagoud Kadabi <[email protected]>
Signed-off-by: Runmin Wang <[email protected]>

Author: Channagoud Kadabi

Diff for: Makefile

@@ -348,7 +348,7 @@ include scripts/Kbuild.include
 # Make variables (CC, etc...)
 AS		= $(CROSS_COMPILE)as
 LD		= $(CROSS_COMPILE)ld
-CC		= $(CROSS_COMPILE)gcc
+REAL_CC		= $(CROSS_COMPILE)gcc
 CPP		= $(CC) -E
 AR		= $(CROSS_COMPILE)ar
 NM		= $(CROSS_COMPILE)nm
@@ -363,6 +363,10 @@ PERL		= perl
 PYTHON		= python
 CHECK		= sparse
 
+# Use the wrapper for the compiler.  This wrapper scans for new
+# warnings and causes the build to stop upon encountering them
+CC		= $(srctree)/scripts/gcc-wrapper.py $(REAL_CC)
+
 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 		  -Wbitwise -Wno-return-void $(CF)
 NOSTDINC_FLAGS  =