ARM: msm: GCC Version change.

- This reverts commit 1e3bae22f3718341dea2d33c0a077a387537a6be.
- Changing gcc toolchain to 4.9 version.
- Fix linker error of unknown CPU architecture by
  adding CONFIG_MSM_CORTEX_A7 in the arch options
  for the GCC. The issue is seen after bump up to
  gcc-4.9.
- Fix section mismatch errors after upgrading gcc to 4.9
  version. To fix these errors variables are moved to
  appropriate sections.

Change-Id: I7b5c9212e63826a0cb5b7e4ab161737ae87a2157
Signed-off-by: Samir Mehta <samirn@codeaurora.org>
diff --git a/scripts/gcc-wrapper.py b/scripts/gcc-wrapper.py
index f503aa2..4cd0db1 100755
--- a/scripts/gcc-wrapper.py
+++ b/scripts/gcc-wrapper.py
@@ -42,6 +42,9 @@
 allowed_warnings = set([
     "return_address.c:62",
     "hci_conn.c:407",
+    "cpufreq_interactive.c:804",
+    "cpufreq_interactive.c:847",
+    "ene_ub6250.c:2118",
  ])
 
 # Capture the name of the object file, can find it.