Re-add ARCH_ARM_HAVE_TLS_REGISTER for armv7

OpenGL needs this flag for armv7

For more information :
https://github.com/androidarmv6/android_bionic/commit/7bc88df02f887229738b08fd7f7bd2668805f306
https://github.com/androidarmv6/android_frameworks_native/commit/4ffa795a3e9f2d2a26766147b1cfedbe78e823d4

Change-Id: Ib68c17e2f8dd3c8c15f8f3ea235fe25a46d05b6a