webos: webos.inc: Enable ccache for allowed components

:Release Notes:
Disable ccache by default except allowed components.

:Detailed Notes:
1. The ccache.bbclass is inherited by default, but CCACHE_DISABLE ?= "1"
is set by default, the overall recipes do not use ccache by default.

The ccache.bbclass is inherited in INHERIT_DISTRO.
However, due to CCACHE_DISABLE ?= "1", the overall recipes do not use
ccache by default.

For more details, refer to ccache.bbclass.

2. ccache allowed component list.
Recipes that use ccache should set CCACHE_DISABLE:pn-<recipe> = "0"

:Testing Performed:
Build Test Done.

:QA Notes:
N/A

:Issues Addressed:
[WRR-2027] CCC: webos.inc: Enable ccache for allowed components
[WRQ-33741] Change in ccache environment in webOS

Cherry-picked-from-commit: e29f215b6bacfbcf3b003573a144bae4303c6734
Cherry-picked-from-branch:

meta-webos/conf/distro/include/webos.inc

@@ -500,9 +500,18 @@ RPMBUILD_EXTRA_PARAMS = " --define '_Author Author' --define '_RP-Maintainer RP-
 export CCACHE_CONFIGPATH = "${@bb.utils.which('${BBPATH}', 'conf/ccache.conf')}"
 export CCACHE_COMPILERCHECK = "content"
 export CCACHE_READONLY ?= "1"
+# Do not use ccache by default.
+CCACHE_DISABLE ?= "1"
 
 # Enable ccache read-only or read-write, Add the following variable to prevent sstate cache miss.
-BB_HASHEXCLUDE_COMMON:append = " CCACHE_READONLY CCACHE_NOREADONLY"
+BB_HASHEXCLUDE_COMMON:append = " CCACHE_READONLY CCACHE_NOREADONLY CCACHE_DISABLE"
+
+# ccache allowed component list
+CCACHE_DISABLE:pn-webruntime = "0"
+CCACHE_DISABLE:pn-webruntime-clang = "0"
+CCACHE_DISABLE:pn-nodejs = "0"
+CCACHE_DISABLE:pn-opencv = "0"
+CCACHE_DISABLE:pn-arm-compute-library = "0"
 
 # Disable showing warning logs when unpatched CVEs are found using INHERIT += "cve_check"
 CVE_CHECK_SHOW_WARNINGS = "0"