RDKEMW-2444 - NetworkManager Plugin Release - 0.20.0 (#719)

Reason for change: Upgrade to new release - 0.20.0 with following Bug fixes

Fixed the bug in Resetting of Manual IPv4
Fixed the SSID Name Length Check
Added Connectivity Improvement
Fixed the WiFi Signal Monitor thread exception
Fixed documentation of GetSupportedSecurityModes
Fixed the WiFi Migration settings

Signed-off-by: Gururaaja ESR <[email protected]>

Author: gururaajar

conf/include/generic-pkgrev.inc

@@ -292,7 +292,7 @@ PV:pn-memcr = "1.0.2"
 PR:pn-memcr = "r0"
 PACKAGE_ARCH:pn-memcr = "${MIDDLEWARE_ARCH}"
 
-PV:pn-networkmanager-plugin = "0.19.0"
+PV:pn-networkmanager-plugin = "0.20.0"
 PR:pn-networkmanager-plugin = "r0"
 PACKAGE_ARCH:pn-networkmanager-plugin = "${MIDDLEWARE_ARCH}"