Correct #if to #ifdef when the macro can be undefined.  Fix bug in AT32UC3 clock initialization:  AVR32_CLOCK_PLL_OSC1 should be AVR32_CLOCK_PLL0_OSC1 and AVR32_CLOCK_PLL1_OSC1.

Correct #if to #ifdef when the macro can be undefined.  Fix bug in AT32UC3 clock initialization:  AVR32_CLOCK_PLL_OSC1 should be AVR32_CLOCK_PLL0_OSC1 and AVR32_CLOCK_PLL1_OSC1.

SAMV71 QSPI: Fix frequency calculation.  Need to use ceil() type logic so that requested frequency is not exceeded

arch/arm/src/up_iternal.h and several ARM Make.defs files:  In the original implementation, NOT defined(CONFIG_ARMV7M_CMNVECTOR) was a sufficient test to determine if lazy floating point register saving was being used.  But recents changes added common lazy register as well so now that test must be (NOT defined(CONFIG_ARMV7M_CMNVECTOR) || defined(CONFIG_ARMV7M_LAZYFPU)).

SAMV71 QSPI: Use new QSPI interface.  Can't use SPI interface as planned; the hardware architectue is too different

Networking:  Move where the local loopback device is initialized from board_app_intiialize() to up_intiialize() so that it will happen automatically

Upstream_446_clock

LPC17: Fix RAM vector table alignment for the LPC17 family.  The ARMv7-M TRM only requires 128-byte alignment for vector tables; the LPC17, however, requires 256 byte alignment