INPUT_OWNERS: update, give "self-ownership"

It makes sense to make people in INPUT_OWNERS owners of the file itself.

Bug: none
Test: none
Change-Id: Ia3fdfd4bb7a009abf8e9e17e37756987cd343ea8

INPUT_OWNERS

 # Bug component: 136048
+arpitks@google.com
+asmitapoddar@google.com
 hcutts@google.com
 joseprio@google.com
 michaelwr@google.com

OWNERS

@@ -32,6 +32,7 @@ per-file **.bp,**.mk = hansson@google.com, joeo@google.com, lamontjones@google.c
 per-file TestProtoLibraries.bp = file:platform/platform_testing:/libraries/health/OWNERS
 per-file TestProtoLibraries.bp = file:platform/tools/tradefederation:/OWNERS
 
+per-file INPUT_OWNERS = file:/INPUT_OWNERS
 per-file ZYGOTE_OWNERS = file:/ZYGOTE_OWNERS
 per-file SQLITE_OWNERS = file:/SQLITE_OWNERS
 
@@ -40,4 +41,4 @@ per-file *Ravenwood* = file:ravenwood/OWNERS
 
 per-file PERFORMANCE_OWNERS = file:/PERFORMANCE_OWNERS
 
-per-file PACKAGE_MANAGER_OWNERS = file:/PACKAGE_MANAGER_OWNERS
\ No newline at end of file
+per-file PACKAGE_MANAGER_OWNERS = file:/PACKAGE_MANAGER_OWNERS