Fix RequestedBMCTransition capitalization

The property name is capitalized as RequestedBMCTransition.
BMCweb is case sensitive.

https://github.com/openbmc/phosphor-dbus-interfaces/blob/f019ea0979ce9d29654e0ce7bfbeb57783c59bd9/xyz/openbmc_project/State/BMC.interface.yaml#L8

Tested: Rebooted a Witherspoon system via GUI.
Change-Id: Ie1379125d32d4c8e17aadcac7e0d65c89d49d2bd
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/app/common/services/api-utils.js b/app/common/services/api-utils.js
index 908dd27..09e2690 100644
--- a/app/common/services/api-utils.js
+++ b/app/common/services/api-utils.js
@@ -897,7 +897,7 @@
           $http({
             method: 'PUT',
             url: DataService.getHost() +
-                '/xyz/openbmc_project/state/bmc0/attr/RequestedBmcTransition',
+                '/xyz/openbmc_project/state/bmc0/attr/RequestedBMCTransition',
             withCredentials: true,
             data: JSON.stringify(
                 {'data': 'xyz.openbmc_project.State.BMC.Transition.Reboot'})