This commit does the following:
- Reports error if SNOR flash is not found on the board
- Changes smi_read_sr to return error using which a retry mechanism is
implemented for reading flash status
Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Signed-off-by: Stefan Roese <sr@denx.de>