Fix the error that 'sensord' daemon cannot be spawn correctly in pmon…

… container

- This commit fixes the issue sonic-net#4021 (Sensord not able to start up on
  both master and 201911 branches)
- Add the new patch file for "lm-sensors" to perform dh_installinit to
  include sensord.init in the packed deb. So that the missing init
  script file for 'sensord' will be included in the created 'sensord'
  deb.

Signed-off-by: Charlie Chen <charlie_chen@edge-core.com>

src/lm-sensors/0002-Patch-to-peform-dh_installinit-to-include-sensord.in.patch

@@ -0,0 +1,23 @@
+From b11fd3d516b62c01513d289bc901820aa150c63e Mon Sep 17 00:00:00 2001
+From: Charlie Chen <charlie_chen@edge-core.com>
+Date: Wed, 1 Apr 2020 06:59:06 +0000
+Subject: Patch to peform dh_installinit to include sensord.install in the
+ packed deb
+
+Signed-off-by: Charlie Chen <charlie_chen@edge-core.com>
+---
+ debian/rules | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/lm-sensors/lm-sensors-3.4.0/debian/rules b/src/lm-sensors/lm-sensors-3.4.0/debian/rules
+index 5ebda06..1d77e28 100755
+--- a/src/lm-sensors/lm-sensors-3.4.0/debian/rules
++++ b/src/lm-sensors/lm-sensors-3.4.0/debian/rules
+@@ -56,3 +56,4 @@ override_dh_auto_install-arch:
+
+ override_dh_installinit-arch:
+ 	dh_installinit -plm-sensors --no-start
++	dh_installinit -psensord --no-start
+-- 
+2.17.1
+