MAINTAINERS: misc updates

Update collaborators and maintainer of some orphaned areas. Also update
path for some of the areas to include tests and samples.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

MAINTAINERS.yml

@@ -244,6 +244,9 @@ CMSIS API layer:
          - nashif
     files:
          - lib/cmsis_rtos_v*/
+         - include/cmsis_rtos_v*/
+         - samples/portability/cmsis_rtos_v*/
+         - tests/portability/cmsis_rtos_v*/
     labels:
         - "area: Portability"
 
@@ -636,7 +639,11 @@ Documentation:
         - "area: IPM"
 
 "Drivers: kscan":
-    status: orphaned
+    status: maintained
+    maintainers:
+      - albertofloyd
+    collaborators:
+      - VenkatKotakonda
     files:
         - drivers/kscan/
         - include/drivers/kscan.h
@@ -693,6 +700,8 @@ Documentation:
 
 "Drivers: Neural Networks":
     status: orphaned
+    collaborators:
+        - nashif
     files:
         - drivers/neural_net/
     labels:
@@ -713,7 +722,11 @@ Documentation:
         - "area: PCI"
 
 "Drivers: PECI":
-    status: orphaned
+    status: maintained
+    maintainers:
+      - albertofloyd
+    collaborators:
+      - VenkatKotakonda
     files:
         - drivers/peci/
         - include/drivers/peci.h
@@ -897,6 +910,9 @@ JSON Web Token:
 
 Kconfig:
     status: orphaned
+    collaborators:
+        - tejlmand
+        - nashif
     files:
         - scripts/kconfig/
         - doc/guides/kconfig/
@@ -968,6 +984,7 @@ MAINTAINERS file:
         - MaureenHelm
     collaborators:
         - ioannisg
+        - nashif
     files:
         - MAINTAINERS.yml
     labels:
@@ -1436,8 +1453,9 @@ USB:
 
 Userspace:
     status: maintained
-    collaborators:
+    maintainers:
         - dcpleung
+    collaborators:
         - ioannisg
         - enjiamai
     files: