The LM4F provides new registers for system control. Each peripheral
now has its own clock gating control register. The LM4F still supports
the legacy registers for backwards compatibility.
Use SYSCTL_RCGCGPIO instead of SYSCTL_RCGC to enable the GPIO.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2477681c7d