Jumping to same image as currently running shouldn't reboot.
Jumping to same image as currently running shouldn't reboot.

BUG=chrome-os-partner:11147
TEST=manual

sysjump RO -> does not reboot/jump (no op)
sysjump A -> jumps to A
sysjump A -> does not reboot/jump (no op)

Signed-off-by: Randall Spangler <62698fdbb84d1779579ee80c3f39fac22017e5bc@chromium.org>

Change-Id: I3f1c9613237242b3cfd502127fb5b461f8d0fb22
Reviewed-on: https://gerrit.chromium.org/gerrit/26899
Commit-Ready: Randall Spangler <62698fdbb84d1779579ee80c3f39fac22017e5bc@chromium.org>
Reviewed-by: Randall Spangler <62698fdbb84d1779579ee80c3f39fac22017e5bc@chromium.org>
Tested-by: Randall Spangler <62698fdbb84d1779579ee80c3f39fac22017e5bc@chromium.org>

fourier49/BIZ_EC,alterapraxisptyltd/chromium-ec,gelraen/cros-ec,md5555/ec,coreboot/chrome-ec,eatbyte/chromium-ec,fourier49/BIZ_EC,mtk09422/chromiumos-platform-ec,thehobn/ec,longsleep/ec,fourier49/BZ_DEV_EC,thehobn/ec,akappy7/ChromeOS_EC_LED_Diagnostics,coreboot/chrome-ec,md5555/ec,fourier49/BZ_DEV_EC,eatbyte/chromium-ec,fourier49/BIZ_EC,akappy7/ChromeOS_EC_LED_Diagnostics,coreboot/chrome-ec,akappy7/ChromeOS_EC_LED_Diagnostics,thehobn/ec,fourier49/BZ_DEV_EC,mtk09422/chromiumos-platform-ec,mtk09422/chromiumos-platform-ec,gelraen/cros-ec,eatbyte/chromium-ec,fourier49/BIZ_EC,longsleep/ec,akappy7/ChromeOS_EC_LED_Diagnostics,longsleep/ec,akappy7/ChromeOS_EC_LED_Diagnostics,eatbyte/chromium-ec,fourier49/BZ_DEV_EC,alterapraxisptyltd/chromium-ec,coreboot/chrome-ec,md5555/ec,alterapraxisptyltd/chromium-ec,mtk09422/chromiumos-platform-ec,coreboot/chrome-ec,alterapraxisptyltd/chromium-ec,gelraen/cros-ec,gelraen/cros-ec,coreboot/chrome-ec,md5555/ec,thehobn/ec,longsleep/ec