Build: Rename TFM_PLATFORM

Arm platforms are moved into arm folder, so the build command
TFM_PLATFORM should do the corresponding changes.

Signed-off-by: Summer Qin <summer.qin@arm.com>
Change-Id: Iba23e4f71d5c5865f358c2b7ce612ba603eff4e7
diff --git a/jenkins/ci.jpl b/jenkins/ci.jpl
index 8772341..5725d96 100644
--- a/jenkins/ci.jpl
+++ b/jenkins/ci.jpl
@@ -10,15 +10,15 @@
 import org.trustedfirmware.Gerrit
 import org.trustedfirmware.Summary
 
-mapPlatform = ["cypress/psoc64":            "psoc64",
-               "mps2/an519":                "AN519",
-               "mps2/an521":                "AN521",
-               "mps2/an539":                "AN539",
-               "mps2/sse-200_aws":          "SSE-200_AWS",
-               "mps3/an524":                "AN524",
-               "musca_b1/sse_200":          "MUSCA_B1",
-               "musca_b1/secure_enclave":   "MUSCA_B1_SE",
-               "musca_s1":                  "MUSCA_S1"]
+mapPlatform = ["cypress/psoc64":                "psoc64",
+               "arm/mps2/an519":                "AN519",
+               "arm/mps2/an521":                "AN521",
+               "arm/mps2/an539":                "AN539",
+               "arm/mps2/sse-200_aws":          "SSE-200_AWS",
+               "arm/mps3/an524":                "AN524",
+               "arm/musca_b1/sse_200":          "MUSCA_B1",
+               "arm/musca_b1/secure_enclave":   "MUSCA_B1_SE",
+               "arm/musca_s1":                  "MUSCA_S1"]
 
 mapCompiler = ["toolchain_GNUARM.cmake":   "GNUARM",
                "toolchain_ARMCLANG.cmake": "ARMCLANG"]
@@ -94,7 +94,7 @@
 @NonCPS
 def generateLavaParam(build_params) {
   def params = []
-  if (build_params["TFM_PLATFORM"] == "musca_b1/sse_200" && \
+  if (build_params["TFM_PLATFORM"] == "arm/musca_b1/sse_200" && \
       build_params["OTP"] == "ENABLED") {
     params += string(name: "TARGET_PLATFORM", value: "MUSCA_B1_OTP")
   }